I used to use TeamSpeak. Very cross platform, as it should be. It still has great reviews although I haven’t dug that far into the privacy aspect yet

I don’t have any options for you but make sure you get one that doesn’t use battery when not in use. It’s really annoying replacing those little coin batteries all the time even though you only use it like .001% of the time

Opt out is such a shitty practice. Especially for AI generation