Thanks, but Time Machine is working fine and I even have a backup from the exact time I produced the report... as well as from subsequent moments. I have a good external HD and all is backed up, but for the exceptions I defined.
VPNs I have one, ProtonVPN. The other one, OpenVPN is not to be found in my iMac and I will see about it.
My original issue was a completely different one: I was asking why is it I don't have Air Play on my iMac in any shape or form.
This was sidelined in this short thread, but was the only reason I wrote here. So it's left unanswered.
Still: Is it true that iMac 2017 machines don't have the Air Play option? Do you have an idea about this?