Contrary to what others said here, I can’t recommend using betas. Been a beta tester since iOS 9 but stopped with iOS 15 because, first off betas began to stink with iOS 14 and considering public releases of 15 are bad, the betas can’t be much better.
Also, I developed the feeling that even if you finally get to a public release, bits of „beta“ stay behind that may cause some bugs, at least in my experience. At least I got to think that because clean installs resolved some of them usually.
To run betas just to have anything before anyone else isnt really smart or a nice characteristic trait either, just saying.
But try it, you won’t void your warranty or anything.