I had LO 220.127.116.11 and just installed 18.104.22.168. Some compnents of the previous installation, including user-defined dictionary and macros, gracefully reappear in the new installation, since they had been stored in my home folder (../.config/libreoffice/4/user/...). Other components, in particular the templates that I had defined, are not preserved, since they are in usr/lib/libreoffice/share/template/common, while the new installation is in /opt/libreoffice6.1. This is both inconsistent programming and a nuisance to the user.
Steps to Reproduce:
1. Leave your old LO version untouched.
2. Install the current version.
3. Start LO Writer.
4. Open the templates folder.
It only contains those templates shipped with LO.
It should contain the templates defined by the user in his previous version.
User Profile Reset: No
Suggestion: Either store all user-defined components in his home directory so they survive program updates; or else, when installing a new version, see to it that user-defined components are copied to their directories.
Update on the report:
I have just installed the Windows version of LO 22.214.171.124. Here the installer gets it right, since all the user settings are stored in subfolders of a folder 'user' at some point down the ramified structure headed by the folder 'Users'.
I am not sure what you mean by 'Resolved'. Unless I am mistaken, you have a Windows system. The bug is on Linux.