Console suggestions? (Steam deck vs Legion go)

I’m considering getting a new handheld console. Currently I have a legion gaming pc (use steam on windows), but I want something more portable and I don’t play on my old switch anymore. I like the steam deck because it would be easy to set up, but I really loved my old switch joycons because they were so much more comfortable in my hands than a 1 piece controller that forced my hands into a certain position. I saw that the legion go has detachable controllers like the switch, which is my main reason to consider them, but I don’t know how difficult it would be to set up steam and my trainers on a different device. I have seen recommendations for the ally recently, and some people say that the joycons can be connected to different devices, but that seems difficult (may not be, I haven’t tried yet). Does anyone have experience with pairing Nintendo switch joycons to a steam deck, or with installing game trainers like cheatHappens or Wand on these consoles?