I am a frontend dev and use Firefox as much as I can. But I can't use it for development. Firefox's dev tools need to be better. I use Chrome for development because Chrome has great dev tools.
I've been trying to use GIMP for years (since Corel destroyed Pain Shop Pro). I don't do a lot of photo manipulation so I don't put in a lot of time learning. PSP had a UI that was discoverable for an amateur occasional user. GIMP has a UI that is completely inscrutable. +1 for Photopea, it has become my go-to.
If you are having problems with Windows RDP then the problem is somewhere else along the pipeline, not RDP itself. No other remote solution I've used is even in the same ballpark as RDP in terms of responsiveness and quality. RDP on a LAN is very usable for actual coding work.
Keep in mind that many (most? all?) LLMs are not trained strictly on factual data, and are probably not trained to differentiate between factual and non-factual information. If you ask an absurd question you will likely get a (delightfully) absurd answer. If you ask a question somewhere in the borders between reality and fiction... results may vary.