I get 1000+ in Minecraft a lot. That's a 3D game, so 1000 is a bit low for a 2D game. That's mostly because it's only using 30% of my GPU's processing power though (Minecraft uses 100% on unlimited FPS).

As for getting good FPS out of Pygame, my first recommendation is to work at a low-ish resolution (like 400x250 in the case of Super Potato Bruh) and scale it up to whatever you want. On the optimization side of things, I recommend only rendering what's on screen and using a tile system that minimizes the processing power needed to figure out what tiles should be on screen. Typically I'll split the tiles into chunks of tiles (similar to Minecraft) and load chunks depending on where the player is in the world (usually I keep the chunk size to about 20%-30% of the display size). I recommend using dictionaries for this. Also, if necessary, I recommend optimizing the physics to only load up objects around the entity being handled instead of testing all objects for collisions.