The 8bit do ultimates are currently my favorite controller of all time. Own several wired and wireless models (at least 1 of each version).
If you have $70 (less on pretty frequent sales) for the ultimate with Hall Sticks, I can't recommend it enough. I reach for these over the Xbox Elite, Dual Sense Edge and Razers I used previously.
Simply a fantastic controller. And they work great with the 2.4ghz dongle or just via Bluetooth with the Steam Deck.
I love their ultimate controller but heads up in case someone else wants it for dual function... their officially branded "wireless controller FOR XBOX" only supports wired mode on an actual xbox. Bought it for my dad for fathers day, but ended up keeping it myself because of that.