Loss of auto-correct options upon upgrade to Ubuntu 20


I have just upgraded ubuntu from 19 to 20.04. Although LO remained 6, I have lost all the auto-correct options I set.

What is the correct file that contains these options? what kind of file is? (it is a proprietary binary or a simple flat file?) Can I back up this file so that I can replace it when needed?

Thank you

Although LO remained 6

Which exactly? I see autocorrect problems with 6.4.3 but not with 6.4.2 (however, in Windows).

What is the correct file…