Unfortunately, I’ve never been able to really daily-drive Linux (and this Arch experiment is no exception). Don’t get me wrong: I love linux and the idea of having independent open-source and infinitely customizable OS. But unfortunately I professionally rely on some of the apps, that have no viable alternatives for Linux (PowerPoint, Photoshop, Illustrator, Proton Drive).
There are viable alternatives for Linux as you mentioned. But non are going to just be drop-in replacements for those tools. There are a lot of graphics design tools out there now that are just as powerful as Photoshop for what most people need. But the big issue is they are different in just enough ways that it can be a challenge to switch to them once you are used to the way Photoshop and the other windows only tools work. This is just something you are going to have to get over if you want to try Linux longer term.
But it can be far too much to switch all at once and with a completely new OS as well. So don’t. Instead start using these tools and alternative on your Windows install now. Start trying out different ones (there are a lot, both open and closed source), and giving each a decent attempt to use. Start out with smaller side projects so you don’t interrupt your main workflows and slowly over time start learning and getting used to the different way these other tools work. If you make some effort to do that while on Windows then the next time you try out Linux they wont seem as bad. But if you keep sticking with Windows only software on Windows you are going to find the same issue every time you try to switch.