As much as I love my Linux workstations and my Steam Deck, nothing beats the simplicity of my Playstation 5 when my son wants to play a game or I want to play something too demanding for the Deck.
With a console you have nothing to set up and you have an unbeaten simplicity.
Maybe the Steam Machine will challenge this, but I think people are often forgetting how good consoles are despite costing a bit more than in the past.
Also don’t forget about physical games that you can resell if necessary.