The mime-apps-spec draft specifies the default launch method. Although it’s only a draft, it actually exists. The defaults.list file is still valid.
desktop-used-apps caches the launch application IDs corresponding to MIME types.
xdg-permission-store records the number of times an application has been launched. When an application has been launched less than 3 times, an application selector pops up on each launch. The cached launch applications are used as the default launch applications.
If the default launch application changes afterward, xdg-permission-store will not be updated.
Therefore, my recommendation is to remove the desktop-used-apps file and use mimeapps.list and defaults.list files instead.
