I'm using FreeTube Nightly, and I'm actually using a newer build than the one that's on the AUR, since you can pull the latest Nightly build from their Github, yay -G the PKGBUILD for freetube-nightly, then modify the PKGBUILD to point at the newer .pacman file. FWIW, this has never really fixed any problems I've had with using whatever the latest version on the AUR is.
But in any case, different people have different results with FreeTube, and it sounds like you've been having better luck than I have. It's not consistent.