I've used Ubuntu happily for many years w/o actually having a very deep knowledge of Linux (I do occasionally use the command line, but only after doing an online search for what to put into it).
Steam is dropping support for Ubuntu because Ubuntu is dropping support for 32-bit programs (https://www.omgubuntu.co.uk/2019/06/steam-announces-that-its-dropping-support-for-ubuntu).
If I decide to switch distros so I can still play old games on Steam, what else is out there that's as user-friendly as Ubuntu, and still supports 32-bit?