Perhaps this has improved, but when I tried it out a few months ago I found that the playback for continuous recording was extremely basic and didn't have features like easy-to-use variable speed scrub to make it practical to search for things. I might try it out again today because I would like to go to something that doesn't have to run on Windows, but my use case is more around continuous recording with around a month of history than event detection.
Space management for rolling retention is also a new feature in Frigate and very basic, I don't think it has a way to do different retention policies by camera group and alarm.
Ah yes, you are right. I’ll never actually look at the continuous unless I’m robbed, so it doesn’t bother me. Person and animal detection is really good, so you’d have to be very motivated to want to slop around in the space between.