>>398727176
I use SlimeVR
Good luck getting parts, and if you're lucky to get a BNO then you're going to have a decent time.
ICM20948s are too magnetically sensitive, and some people are looking at ways to bootstrap a magnometer to the 6-axis IMU for 9-axis tracking.
They're decent for moving, but I have to re-align the trackers with fast resets frequently enough if I sit down/stand up, and I can't lay in bed with them because of the sensitive magnometers.