Maybe this is less of an issue now we’re in the digital era of console games but one of the biggest aspects for me is that if I buy one of these new machines, my existing library is just there. No starting from scratch or worrying about backwards compatibility. It’s a PC that has everything I need from the get go.
The story was the same with the Deck. Granted it took a little while for many games to be fully supported but the transparency from Valve on the store pages about compatibility was great and is in a far better state now.