Hey.
For what it's worth, I found this page with recommendations for those bluetooth ODBII devices.
https://www.carscanner.info/choosing-obdii-adapter/
This guy wrote the app CarScanner.info so I guess he had to deal with connecting to a lot of different ODBII bluetooth devices. What he says is that some of the devices have bugs in them or don't have the full command set.
There are 2 devices he recommends.
I actually got one of the ones he says not to get. But I got it for cheap and before I downloaded his app. (So, before I visited his website and saw his recommendations.) I'm just going to see how far I get with it. But I do plan to eventually get one of the ones he recommends.
Take care.
TheRogue.