Depends a lot on the model and usage; I did that too (after recommendations from my friend) but ended up with low power warnings fairly often.
And now of course the battery has significantly lower capacity than new, or the OS is much heavier. The watch was charged while I took a shower after the gym this afternoon. Was fully charged this morning. It’s currently on 37% at 19:51.
(for context, my watch is a 44mm (or, large) series 4)
