I go in to do a simple operation: merging some rectangular selections.
Draw the first selection, then start drawing the second
Using Ctrl, Shift or Alt didn't seem to work. I look at the tooltips and it says "Drag + RightMouse".
What? Never before have I seen this combination, I had to do 2 attempts to get it right since my brain was still stuck in the "wait? what? " phase
Consistency is golden. Ctrl, Alt and Shift have been used as modifiers for over a decade, having this new and unintuitive selection coming out of nowhere is confusing.
I get that you might more than those 3 selectors but that's why you can combine the modifiers (ctrl + shift, ctrl + alt + shift etc).