How to change the order of products in full catalog

Is there a way to change the order of products in my full catalog? I can change it in collections, but the page that shows all my products is in alphabetical order and I can’t figure out how to change that. Thanks!

Have you tried using the theme editor?

If you’re talking about /collections/all pseudo-collection then you can’t control sorting there.

However, you can create a proper collection, title it All (title is important), make it automatic with condition, say, “price > 0” so that it includes all (almost all) of your products.
Set sort order as you want.

This new collection will replace what’s currently shown at that URL.