Such a fuss over a simple idea that’s backed by listener experience. Argue if you will about how much is costs to turn-on/off, replace tubes, etc. people who leave their gear on report better sound in the first hour or so. That’s the complete nut.
We’re mostly at home now. Why not leave your system on for a week and see what it sounds like?
Just askin’.
PS Old tube lover now running solid state. I never turn off anything in my system.