Ok, I found out what is the problem. There is worn spot on a clutch master cylinder rod that shows what range the rod used to work. It's clearly not reaching its normal down position even with pedal on the floor. Pedal is bent.
https://youtube.com/shorts/y7YT8joT3X0?feature=share
Now wonder what happened that he pushed it strong enough to bent it. Maybe incorrect slave mounting. I'll let you know.