As I had a USB stick with Ubuntu LTS I booted from it and I was able to connect using that, so I’m thinking some issue with the specific version of bluetooth on OpenSUSE Tumbleweed?
I’m currently on:
I had a bluetooth issue with the 5.15.7 kernel kernel … but it was fixed for me in the 5.15.10 kernel.
I do not track Tumbleweed versions close enough (and frankly I suspect only a very few can off hand say) what kernel was in use in the “20220111” Tumbleweed kernel. What kernel does that Tumbleweed version have?
If the kernel in that Tumbleweed is the 5.15.10 or newer, then possibly the issue you encountered was not fully fixed in the 5.15.10 kernel, and you could be into bug reporting territory.
Press the combination on the left earphone to start pairing, short then long press and hold until it says pairing.
In bluetooth manager, select the headset device and pair, after pairing put the earphones back in the case, wait until it disconnects.
Take them out again and accept all 3 pairing requests and set to automatically accept.