I use the filter entities constantly, but it’s pretty hard to remember the correct name in it’s entirety.
A model I’ve used on other software that I’ve liked is that space separated items in the ‘filter’ become an “and” - i.e., if you look for “switch bedroom light” it would find “switch.bedroom_light” and “switch.master_bedroom_light” etc. It would cut down having to remember the exact names of entities while still allowing you the ability to type them out exactly.