I will say, however, that I'm generally against content filtering. My kids know the rules, and they know if they violate them, they lose device privileges. Simple as that. If I put parental controls on, they'll just circumvent them (and I'll teach them how to if they ask). I know because I was a kid and constantly got around stupid content filters at school.
Either I trust them with the device, or I don't, no half-measures. For example:
TV - "kids" profiles, but they're free to use our "adult" profiles if the filtering sucks
computers and tablets - they ask for access, tell me what they want to do, and I unlock it for them
Switch - child lock, but only because my 4yo keeps taking it when not allowed; my older kids know the code
That's it. I generally allow them to use devices unsupervised, though in a public area so I can walk over and check on them. I intend to give them their own devices as they get older (i.e. they'll set their own passwords). But if they violate my trust, it's their fault, not the content filter's, and they lose privileges.