Starting with the 360 I was always Xbox and PC on the non-Nintendo side of things and never got a PlayStation console, except a PS2 very cheap to play some classics like MGS3 and SOTC.
I meanly stuck with Xbox because I liked the games they had to offer (Rare games and PGR at first, HALO and Gears when it was still made by the original teams, Remedy exclusives, the occasional surprise like Lost Odyssey and Forza Horizon).
Currently however, there's very little coming to Xbox Series X that interests me and I can probably play all the upcoming Xbox 'exclusives' on my PC.
This might be the first gen I'm considering a PS5 but moving from one platform to another seems such a hassle these days and of course I'll 'lose' a chance to bring over my Xbox BC library, cloud saves etc. .
My current plan is to just wait until spring / summer 2021 to see where things land in terms of exclusives, performance, hardware issues, pricing, developer support etc. .
Resident Evil Village is the big one I'm waiting for as far as next-gen games go and it seems like my Xbox One X has plenty of mileage left to run cross-gen games until that releases.