Hi, using W10 Pro 22H2 compilation 19045.5147, Libre Office version 24.8.03. Some time after working and letting at background without saving, not sure the passed time, when tried to continue work I see it is frozen. I have to terminate process and start again, recover the file, all unsaved modifications are there. It seems while trying to save recover file at background it is freezing after save is complete.
This may be somewhat different than the topic saying it is freezing at startup.
Please test in safe mode, Menu/Help/Restart in Safe Mode
Possibly an older chip with integrated graphics?
Try this, click Tools > Options > LibreOffice > View and then tick the box Force Skia software rendering
Thanks, I tested several times, saw no freezeing after ticking this ‘software rendering’ box. Even I didn’t understand how rendering causes freezing but ok, these softwares are quite complicated 
If I face same problem later with this configuration I may enable this topic again.