I still should be able to hide the albums if I want but I am unable to do it. Also the app icons for gallery and files have reversed to old icon styles
I got these after I installed to the new update, I should be able to hide or remove the albums from my gallery. I think it is glitch and hopefully fixed in next update.
I use Google photo's app as well as the Samsung gallery so you may have better luck in there, the gallery app tens to have what your saying a glitch in it, I can't back up in my Gallery for some reason so most of my stuff I keep in Google photos.