Angstyboy

Same here, agree that for drawing Designer is just not good enough. If you want OK pressure control, you need to draw sloooow strokes, resulting in wobbly lines with way too many points. If you want smooth lines, you need do draw quickly, but then the pressure is sampled/processed by Affinity app at too low a rate, resulting in very ugly lines. Draw too quickly, and the curve is ignored completely, and you end up with a straight line with constant width (tested on i5 and i7 with ssd drives and 16gb ram, so it's not a hardware issue). Comparing this to Illustrator or Clip studio only shows how much Affinity  is lagging behind in this regard (pun intended

Same here, agree that for drawing Designer is just not good enough. If you want OK pressure control, you need to draw sloooow strokes, resulting in wobbly lines with way too many points. If you want smooth lines, you need do draw quickly, but then the pressure is sampled/processed by Affinity app at too low a rate, resulting in very ugly lines. Draw too quickly, and the curve is ignored completely, and you end up with a straight line with constant width (tested on i5 and i7 with ssd drives and 16gb ram, so it's not a hardware issue). Comparing this to Illustrator or Clip studio only shows how much Affinity  is lagging behind in this regard (pun intended

Hi everyone, thanks for your patience. In the latest customer beta (1.8.5.703) we have changed the default tablet input method to be the Low Precision mode, the same as in 1.8.3, and added a new Preferences option that allows users to opt-in to High Precision or Windows Ink modes. If you would like to check it out, the details are here:

"Legacy" in the --legacy-wintab command line flag context refers to our legacy implementation (the low precision input data), not the hardware itself, though I appreciate that may be ambiguous.
In the future we're going to add a preference item that will allow you to choose between:
High precision input (the current default, not compatible with mouse mode, and some tablet devices such as XP Pen). Low precision input (how we previously received data, in 1.8.3 and before). Windows Ink input (for users who prefer this mode). Hope that clears things up.

Yes, that setting. There are websites and apps that actually screw up the coordinate mapping of the tablet to screen when you have it set other than 100% actually, so I asked. With 100% setting, the problem is definitely with AD, not with Wacom. Have you tried the "--legacy wintab " 'solution'?
See here:
 

@Liv R
You need to right click the Designer shortcut and add it to "Destination" so it looks like this. Just add it to the end with a space between it and the "blah blah" path to Designer.exe
"C:\Program Files\Affinity\Affinity Designer\Designer.exe" --legacy-wintab
Danish but similar:

Same here, agree that for drawing Designer is just not good enough. If you want OK pressure control, you need to draw sloooow strokes, resulting in wobbly lines with way too many points. If you want smooth lines, you need do draw quickly, but then the pressure is sampled/processed by Affinity app at too low a rate, resulting in very ugly lines. Draw too quickly, and the curve is ignored completely, and you end up with a straight line with constant width (tested on i5 and i7 with ssd drives and 16gb ram, so it's not a hardware issue). Comparing this to Illustrator or Clip studio only shows how much Affinity  is lagging behind in this regard (pun intended

Same here, agree that for drawing Designer is just not good enough. If you want OK pressure control, you need to draw sloooow strokes, resulting in wobbly lines with way too many points. If you want smooth lines, you need do draw quickly, but then the pressure is sampled/processed by Affinity app at too low a rate, resulting in very ugly lines. Draw too quickly, and the curve is ignored completely, and you end up with a straight line with constant width (tested on i5 and i7 with ssd drives and 16gb ram, so it's not a hardware issue). Comparing this to Illustrator or Clip studio only shows how much Affinity  is lagging behind in this regard (pun intended

Same here, agree that for drawing Designer is just not good enough. If you want OK pressure control, you need to draw sloooow strokes, resulting in wobbly lines with way too many points. If you want smooth lines, you need do draw quickly, but then the pressure is sampled/processed by Affinity app at too low a rate, resulting in very ugly lines. Draw too quickly, and the curve is ignored completely, and you end up with a straight line with constant width (tested on i5 and i7 with ssd drives and 16gb ram, so it's not a hardware issue). Comparing this to Illustrator or Clip studio only shows how much Affinity  is lagging behind in this regard (pun intended

Same here, agree that for drawing Designer is just not good enough. If you want OK pressure control, you need to draw sloooow strokes, resulting in wobbly lines with way too many points. If you want smooth lines, you need do draw quickly, but then the pressure is sampled/processed by Affinity app at too low a rate, resulting in very ugly lines. Draw too quickly, and the curve is ignored completely, and you end up with a straight line with constant width (tested on i5 and i7 with ssd drives and 16gb ram, so it's not a hardware issue). Comparing this to Illustrator or Clip studio only shows how much Affinity  is lagging behind in this regard (pun intended

+1 for the feature to reset without altering the shape