12 volt circuit breaker in dual battery setup.

Has anyone used a circuit breaker instead of ANL fuse in their dual battery setups? I would like the option of cutting power from my starter battery to my charge controller/isolator without having to install a fuse AND cutoff switch and it looks like a circuit breaker can be used as a switch but I’ve heard negative stuff about them on YouTube mostly so I thought I’d get some feedback here.
Most of what I’m looking at is on Amazon which is China stuff, I looked at the Blue Sea breaker but it looks identical to the Chinese stuff.

 

They look identical because China copied their design but guaranteed the internals and quality are not the same. Blue Sea makes high quality marine grade electrical stuff. I have a couple of their breakers I use in my truck as a main breaker to my accessory fuse panel and Switch Pro. I use another in my battery box as a main breaker. No issues with either. The one in the truck has been in the engine compartment for 5 years too.

 

Blue sea stuff was originally designed for nautical use where electrical fusing, cutoff, etc is quite common to use breaker type designs. The use case you describe makes perfect sense for a breaker.

(the 53' Meridian I was on last week had literally the exact same use on a breaker)

 

I went ahead and ordered these from Digi-Key.
https://www.digikey.com/en/products/detail/mechanical-products/175-S0-040-2R/12698414