Peace,
I have encountered so issues on my laptop running Ubuntu Eoan.
The operating system shutdown continuously after the heat from processor reach a point.
This heat was caused by one particular software I have installed for browsing.
The system based browser has unfortunately generate the same problem but after a longer time of utilisation.
The solution is tricky since I am on the latest kernel distribution available.
I keep faith in the community of Ubuntu users forum.
Warm regards