There are “servers” on Matrix. They are called communities

Here is the relevant part of the documentation for that: https://matrix.org/docs/communities/getting-started/

All the open source alternatives also work on windows. You could try them on your current OS and make the switch to Linux once you’re confident you’ve found a workflow that works for you.

Lightroom: Darktable Photoshop: Gimp (version 3 just released) or Krita Illustrator: Inkscape

One note though: The Windows versions tend to be a bit of an afterthought. Performance can therefore be not as good as the Linux version.

I hate to be the one to break it to you but AIs aren’t actually people. Companies claiming that they are “this close to AGI” doesn’t make it true.

The human brain is an exception to copyright law. Outsourcing your thinking to a machine that doesn’t actually think makes this something different and therefore should be treated differently.