I use TM as well. I got an app (https://tclementdev.com/timemachineeditor/ https://tclementdev.com/timemachineeditor/) that will manually trigger TM backups wh

I use TM as well. I got an app (https://tclementdev.com/timemachineeditor/ https://tclementdev.com/timemachineeditor/) that will manually trigger TM backups whenever the machine is idle. Seems to work a lot better than the Apple automatic or timed backups.