Earlier quoted context omitted.
I have a saying “nothing sucks like synergy but they all do”. Not a single one of these technologies is reliable. But synergy is the one that has multiple times made even the connected keyboard stop working to the point where the machine needs to be power cycled to become responsive.
Thing is, I used the old OSS Synergy some 15-20 years ago, across Linux, Windows and I believe OSX as well (although I am not 100% certain about the latter). It worked absolutely flawlessly for several years while I used it and I loved it dearly. Fast forward (I had no need for a software kvm until last year) and I use Barrier now and it barely works. Autostart on Windows doesn't work at all, the installer failed to…
Way too much BS to get it running though.