For the last week, after a recent update, my libraries keep freezing after about an hour of use or if I go into another program.  The only way I was able to get past this was fully closing the program and reopening again.
 
I also have a problem with saving my files as well.  We use onedrive in our office.  Now when I try to save my whole computer lags.  If illustrator is not open there is no problem.  The only way around this while I am working is either pausing the sync or quiting onedrive. 
 
Illustrator V 29.5.1
MacBook Pro
Apple M1
16 GB Memory
 
OS - Sequoia 15.5