If you wanna play to games with xbox or playstation controller you can use the hombrew bloopair ! (if u use a recent xbox controller downgrade the firmware of your xbox controller with the xbox app because the last firmware change the bluetooth version protocol an will not work)
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i've done this with my ps4 controller (it works and it's cool)
This also works with Switch controllers
no wonder i couldn't connect my xbox controller
in u need help to downgrade the xbox controller firmware you have to go to 'xbox assist' on your xbox and search controller connection issue, then check controller firmware, then revert firmware, dm me if u need help ;)