Phone Link is Microsoft’s late and closed source alternative to KDE Connect. It requires you sign in to a Microsoft Account for it to work.
This means all the transactions between your phone and your PC are monitored and sucked up by Microsoft.
https://github.com/KDE/kdeconnect-kde?tab=readme-ov-file#on-mac-or-windows
Weirdly shows not officially supported on github.
Thanks for the other links!