Welcome to the community, @Kristaps_Kravalis!
It all depends on your workflow, but in general, it often makes more sense to keep all of your items in the same table as opposed to separate tables.
Then, you would create different views for your different categories, and you can hide the unnecessary fields on the different views that don’t apply to that category.
But if you have a small number of categories that need to be separated for some other purpose in your base, it could also make sense to do different tables as well.