Official LineageOS 17.1 for Fairphone 3/Fairphone 3+

I’m coming from a SGS5 with Linage and used the Bluetooth tethering sometimes when my internet has problems. My PC doesn’t have Wifi, but a Bluetooth dongle, so I used Bluetooth tethering to share my Phones internet.

AFAIK this needs to be activated in some kind of linage config file before build, can this be done or is it a Fairphone-3-Issue ( i never looked, if the stock has Bluetooth tethering, since i directly moved to linage)?
If it’s a Linage-Issue, should i create an Issue on Gitlab?