I don't think you need to avoid polygon due to reasons you said above, people will crowd over the polygon network if you're game is appealing as you say it actually is. It's especially advantageous considering how ETH has enormous fees, so people transitioning to polygon wouldn't feel awkward for your game, they'd probably welcome it even. Looking at it from another side though, high fees won't exactly stop the game from spreading if it's really that good. But ehhh, considering all things, a blockchain with smaller handling fees would be a lot better.

I suggest creating a whole new post altogether. It'd kinda get buried with all the posts here. Maybe even self mod and reserve the first few sections so you can have them all for your updates.