The Android app mostly fills in login fields automatically. There are only a few apps where it doesn’t work. The same goes for the browser extensions.
TBH, it’s the least cumbersome way to have unique passwords for each app. Password reuse isn’t an option for me because eventually someone will have their DB with password hashes stolen and someone will be able to decrypt my password hash. IMHO It’s only a matter of when it happens, not whether it happens.
I find even memorising the few passwords I still have to cumbersome. So for me the password manager is definitely the way to go.