The vast majority of users don’t need “more meat” in their OS. They need stability. Linux Mint works great on that front, I don’t see the need to loose focus with multiple new distros. Not everyone needs to jump distro every month.

Disclaimer: i’ve been using Linux Mint for over 10 years without ever hopping to something else. And I’m a software engineer, not a casual user.

This may be KDE Connect. I noticed this happening between my desktop and my phone when installing that app (non KDE desktop). A bit scary at first.