Baloo only takes up a lot of CPU if you have it set to index file contents and hidden files. Shut those off, let it index completely, and it won’t happen ever again.
You might be able to keep “hidden files” on, but indexing file contents always bogged my laptop down.
EndeavourOS is the first Linux distro I tried a little over a year ago.
I have never felt the need to even try anything else. If it ain’t broke…