Recently I downloaded a semi-legitimate copy of Photoshop CS3 (from 2007-ish). It made me realize how little the software has changed in the past nearly 20 years, aside from the terrible performance regression.
I'm by no means a Photoshop power user, but the stuff I use (the primary tools, the blending options menu, Image/Adjustments menu, Filters menu) are almost 1:1 feature-wise with the latest CC version.
I haven't tried to open .PSD files from a newer Photoshop, I don't know what the compatibility story is. I haven't ran it on my Linux box either, but I assume it will be easier to get it running than CC 2024.
I'm by no means a Photoshop power user, but the stuff I use (the primary tools, the blending options menu, Image/Adjustments menu, Filters menu) are almost 1:1 feature-wise with the latest CC version.
I haven't tried to open .PSD files from a newer Photoshop, I don't know what the compatibility story is. I haven't ran it on my Linux box either, but I assume it will be easier to get it running than CC 2024.