I mean, every market has 2 or 3 whole aisles dedicated entirely to cleaning products and each seems specific for one thing only. I feel like some soap with a disinfectant is enough, but most people I know do a whole 3 stage cleaning ritual - soap (and rinse), disinfectant (and rinse), bleach (and rinse to finish)
I’m not convinced you need specific toilet bowl cleaner if you clean it regularly; a lot of them are really strong chemicals that are unnecessary, but it does depend on your situation and the water you’ve got etc. Loose stools may need more attention.
A bit of all purpose cleaner really is all you need imo. But if hard water you’ll need to up it to something containing a (preferably buffered) acid to remove soap scum and hard water deposits.
Vinegar has its place but I find it almost universally disappointing when cleaning. In particular, it’s not got any surfactants or ability to bind to dirt or grease.