RichardMH

I've always used the Rectangular Marquee Tool, copy to a new layer then the Move Tool to resize.

I get something in Windows 11 File Explorer but not in Bridge.

Do you have access to a real mouse to see if that's OK?

First thing to try might be to reset the user defaults. On a PC hold control when you start Affinity Photo.

Not exactly sure what you are doing. You know you can resize in centimetres and keep the pixel count high by having a high dpi?

As well as the resize settings there are settings in Export. What jpeg quality did you select? Maybe post a screen shot of your resize settings and your export settings.

On the top left there are Mask and Selection buttons. Will they do what you want? Selection and ctrl J (on PC) or ctrl C then ctrl V?

Document->Resize Document lets you specify the dpi. Export should send out whatever dpi you've specified. Assuming you're on Windows, opening the png in Paint and File->Image Properties lets you check the dpi.

Apart from not enough RAM, the 512GB SSD will basically hold your apps and not a lot more. I'd get at least another 1Tb SSD as a working drive for your images. When that's full get some external drives as archives and move your images there. You should include an external drive for your back ups anyway. And a decent graphics card!

Are your graphics drivers up to date?

I think the concern at the moment is more for documentary photography that claims to be a true representation of the world. e.g. in news media. If a print is sold as a piece of art does it matter if some or all of it is AI generated? I believe there is already a lucrative market for AI art that is expected to grow.

There's several ways AI is used in images. The focus here seems to be on generative AI. But there is also the image quality AI for noise and sharpness that Topaz and DxO use (and Adobe) and AI masking. Personally, I can't see any image editing software surviving long without AI masks. I suspect those of us that want the image quality AI are happy to use plug ins. Topaz are also developing AI lighting and white balance so there's a lot happening in the non-generative AI space.

The main web site seems to be this https://contentauthenticity.org/ I'm a club photographer and I think the provenance thing will happen for competitions there sooner rather than later. My club is discussing it and as most people use Photoshop there may not be much resistance. Its in beta for Photoshop https://helpx.adobe.com/au/creative-cloud/help/content-credentials.html and available in one of the recent Leica's for the documentary photographers https://leica-camera.com/en-AU/photography/content-credentials

If Photo goes the generative AI route, then we need them to join the content authenticity initiative and editing adjustments be in the meta data. I've been led to believe Photoshop has it already.

I'm on a Windows PC, so Mac must be different. Could try resetting user defaults.