Hi, I have recently found this as an alternative to the great RCX which has been outdated for quite a long time now. RSAF has been updated a few days ago to use the latest version of rclone, 1.69.0. I am just leaving this here in case someone doesn’t know about it.
It is not listed in F-Droid. Maybe they will do it in the future, that is currently the only issue on GitHub https://github.com/chenxiaolong/RSAF/issues/50. Until then, you could use Obtanium.