I would think it moral to download the discs you own as rips. Get a vpn for a month and download away. This would be a lot less time and electrical energy consuming compared to ripping them yourself. Also somebody else has already dealt with drm bullshit.

Roblox can also be installed via lutris on Linux.

Popos also has specific guides for these common errors:

https://support.system76.com/articles/bootloader