1sealion: I need help on what computer to buy that can play all of steam and gog games. I’m not computer savvy so don’t understand all the specs. I found one at Best Buy for around 1250
As people have already said, if you have the time and inclination, building a PC will give you the most flexibility and usually the best price (although GPU prices have seemingly upended that ATM), but since you claim to to "not (be) computer savvy" (not a crime BTW) and building a machine alone without experience can be both aggravating and costly...
... and since you obviously have a Best Buy near to you...
... I would suggest (again, just a suggestion) you looking at the Omens. I've looked at the 30L myself when I wanted a pre-made machine that had good specs and was somewhat upgradeable.
https://www.omen.com/us/en/desktops/omen-25l-30l/specifications-30L.html and look at one of the various Omen configurations at the bottom of this Best Buy page...
https://www.bestbuy.com/site/hp-omen-30l-gaming-desktop-amd-ryzen-7-series-3700x-16gb-memory-nvidia-geforce-rtx-2060-1tb-hdd-256gb-ssd-black/6402514.p?skuId=6402514 For around $1800 you should be able to get a machine that can be somewhat upgradeable and should be able to play most games at relatively high levels. With a few upgrades over time, it should be pretty capable for a number of years.
I'd start by taking a look at the Omen reviews on YouTube.
Hope you find something!