Yeah, what I just explained seems to be a Thunder-only thing. I really do like the ability to see the list of everywhere else that a certain URL has been posted to, but it would definitely be nice if it was more descriptive about the relationship between the posts
Not surprised you’re not finding Linux compatibility info. It looks like it was just announced. Logitech tends to not support Linux for their customization software, but I presume Solaar will add support for this device eventually.
https://github.com/pwr-Solaar/Solaar