It's always intriguing to see other people's takes. I'm in nearly the complete opposite boat: in recent years I've switched to AMD and it feels like all of my hardware problems have gone away.
Heaven is using AMD cards for graphics and NVidia for computation.
Hell is the reverse.
I have an extra Radeon VII in my ML work station because I don't have to fight nvidia graphics drivers to get it to work. I have the NVidia cards so I don't have to fight AMD drivers to get ML drivers to work.
I'm assuming GP runs Windows and you run Linux. NVidia's proprietary drivers are known to be a lot more stable than AMD's. But on the other hand the open source driver and software stack for AMD (partially shared with Intel) is much more stable than NVidia's on Linux.