Spec'ing out a GPU for my build, how much do I need?

Hey all, so I'm building out my first desktop in a very long time and I was trying to figure out how powerful of a GPU I need for my needs. I'm planning on a Ryzen 3600 build, with 16GB+ RAM. The primary use for this desktop is going to be spinning up/tearing down test VMs for my job hence the CPU/RAM.

I don't play a ton of games currently, but do have a fairly large steam library, and want to finally start playing through my backlog. Currently I'm playing games like Minecraft, Stardew Valley, Fallout: NV, Skyrim SE, etc and I want to continue to play those games (with light mods/shaders + better resolution) and move on to newer old games (think r/patientgamers, I don't have a need to play current gen due to the backlog)

I'll be installing both Linux and Windows and have 2-3 (business, DVI & Displayport input) monitors in total, and do not have a preference whether the GPU is Nvidia or AMD, or even if it's something from a couple years ago as long as I'm still able to buy it for a reasonable price.