@keneda Thanks, but I finally found it under the cover of what I thought was the m.2 slot. I've got my bluetooth ear buds working using an ancient D-Link dongle which oddly works rather than the Plugable one that's supposedly the best for Linux .
About your device, I'm not sure it is currently supported there are the Xperia XZ and Z1 but those are probably the same.
You can head to https://devices.ubuntu-touch.io/ to see a list of supported devices and their progress.
Pardon my brevity, but I've been reading nothing but arguments about this for a week.
I have not seen one conversation about this topic which has remained in useful, measured debate. It has always devolved into name calling and subterfuge. I've watched friends leave and people get unreasonably upset over a conversation.
I don't think that we're able to debate this topic here. Please find another forum to do so.
@c0n57an71n Great idea, I didn't know about this feature from ProtonMail. Voted! I've been using UT for more than 4 years already and ProtonMail for almost 3 years as my main email so this will be really a necessity for me sooner than later.