nostr:npub1st2vflwph66dqmtlpcvyz5nxegryx479rdz3th8tj7gx2awc9kes7l2wu9 nostr:npub17l8vywqnwud43ucttkp88fnwvw0sqdevvcwgfe4xqvzzq525qrgqqr62d2 I don't think a bit of pixelation will kill anyone, man. You could also just make super high quality maps but cut them up into their own piece, so they can fit the upload limit.
Plugins are obviously very cool, but that's a whole lot of work that others did for you in Foundry VTT. It's the same for Roll20 (only that you have to go Pro, which I would not recommend to anyone sane). As for "unlinking tokens" and all that crap, Roll20 does have a similar feature actually, I never used it because uh, it's too much work for something I can just do on my PC directly when the UI on Roll20 is garbage.
As I said, I use AlwaysOnTopper with screenshots and I'm doing just fine keeping track of what is needed from my mobs.