I enjoyed Pixel experience and paranoid android builds for my S9,
there are worthwhile things with Rooting, when I had a oneplus X I went nuts with rooting,
unfortunately didn't survive past a year, was able to hard brick it, luckily I managed to return it and get refunded)
actually how I started was back in the days on my Galaxy pocket S5300 where the Motherboard got replaced twice, but I kept getting nonsensical error messages.
samsung eventually told me its out of warranty, and thats where I rooted that phone to a later Android version,
was fun times as you finally see what Android is capable of, the options and settings were amazing, really enjoyed playing with all the options you got.
been on a rooting journey with most of my phones actually, only recently with my S21 FE have I left it well alone,
as tempted as I am to go back to pixel experience or lineage or some fork of ROM,
last phone I had, the S9 had, but I saw the hobby isnt as useful as it once was,
sure you got your Magisk hide modules and its possible to hide things like banking apps from Rooting,
you also got get Google Wallet/Pay to work, briefly and then stop working,
samsung health, will work and then stop, as they update the app to pick up the rooting,
do miss my Adguard and adaway though

do also miss some of the wacky apps you get on F-droid, some were a real hoot to play around with.
will I go back to Rooting? possibly, if Samsung does a backtrack and says older phones aren't supported with latest O/S,
or if my S21 goes out of software support and I still have it, might give it another go, when its not a daily driver anymore and got some horsepower to handle mods and kernels and all the fun stuff you can load.