I also find the experience for getting to Stationary Guardian somewhat annoying since there are usually multiple steps to get to there... That choice should be top level.
Moving a stationary guardian should also be easier. Sometimes you just need to move a little, and that shouldn't require going through multiple steps.
This may all work more smoothly if the Quest took into account what app you are currently using, and maybe other elements in your environment... Like, even with no guardian, maybe it should show some kind of boundary if you seem likely to run into stuff.
It also shouldn't as quickly go to standby or other modes when you're watching a video and just lift up the headset.
Basically, the guardian experience should be smoother - given the information available to the headset, and people's common needs in different scenarios.