I would use whatever earbuds you want and use the built in steamdeck mic. The built in mic is actually pretty clear. I use my Sony wh1000 and on board steamdeck mic and it’s been a great experience

https://youtu.be/bilk0NOz8qw?si=rzOaVKES6xGmOCWq

Does a decent job talking about all the upgrades

I use my steam deck as a controller on my pc monitor because it’s gyro is so good. Definitely excited that oled has better gyro