- 1 GiB FAT32 EFI, rest in your preferred filesystem for root
- If you are dualbooting and accessing all files / games from Windows is a concern, make Linux root partition around 50 GiB
- I use zram instead of swapfile or partition but setting up zswap (NOT zram) with swapfile is a better idea.
- You didn’t mention encryption. Are you considering it?