You may have noticed that the new forum software (Discourse) supports tags. While not mandatory, I think it would be a good idea to start using them. Even though the Search system is quite robust (something that SMF struggled with - and something all old users are familiar with), adding tags to your posts will tremendously help organization in the long term.
if you don’t see one (or more) fitting your post, please consider creating one (right there in your post), but be mindful - no reason to overdo it!