DeletedUser119
Does your threat model have law enforcement or nation state level enemies in it?
If not then Google Play Services without a logged in Google account is basically a non issue for you in terms of security and privacy.
Molly Foss doesn't touch Google for notifications so using it in a profile with Play Services installed is a pretty minimal hit.
And if your threat model does include law enforcement and hostile nation states then Reolink should not be how you are interacting with your security camera's.