I had the same problem, having never used a console. I’ve always been using PCs (starting with small 8 bit machines, to a 286, and later to the beasts we currently use (running Linux though). It took me a good while to get used to the Steam deck.

I had no choice because I have no other gaming rig at the moment while my home is being completely rebuilt, so my PC has been turned off for two years now :(.

I’ve gotten better at it, and I’m getting through Fallout on the deck, but I have to avoid some games. For while some games do indeed work better with a controller, others (FPS) are way better with keyboard and mouse.

So all in all, I’m glad that the Deck has opened new possibilities. But the game controller isn’t the ultimate gadget, just another option.