Actually, webpages that mention it get blocked from what I’ve heard. But there’s no way to know if a videogame chat will have it (especially if TLS/SSL is used), so it wouldn’t happen there.

What are you actually broadcasting while doing so? That you are using KDE Connect?

That + device name which is probably pretty unique. Chinese routers scrape all of that. IIRC mDNS is actually disabled on Linux for now because it was conflicting with Avahi which broke some more stuff.

do not use KDE Connect on other networks

Last time I used it, I don’t recall a toggle for that in either the Linux or the Android clients.

Edit: what alternative device discovery solution could be used by KDE Connect to make it more private on untrusted ntetworks?

Exactly as it is right now but on a whitelist.

Offtopic but I am really annoyed by how many custom ROMs (especially LineageOS) disable MAC randomization at build time and make zero mention of it on the wiki/forum/whatever page. That’s just as important.

KDE Connect seems to send identifying broadcast packets constantly (just like gapps), not the best for privacy on public bing chilling router WiFi. Android itself technically does too, but you can just change your device name to " " (space).