I have a strong usability issue with Thunderbird (version 128.4.0esr in my case).
Precisely, Thunderbird does not search by part of a search word, which make the search to function less useful than it could be.
For example, I have an email (in German) with the subject line "Gruppeschutzimpfung" (which means Flu-Protection-Vaccination). I am not German and I do not remember the exact word. I search for "grippe" - nothing found, I search for "Impfung" - again, nothing found, while thunderbird looks only for exact words. It would be much-much better if the search could work with words parts as well.
