Sometimes I want to browse my files outside, maybe to check if file is there, or check the size, or the path, I often use rclone mount and use Snap2HTML to make an HTML file explorer.
You can browse files and even search within them, it is really helpful when I do not need a live copy, and very lightweight, but using rclone mount consumes to much resources and time, I actually prefer using rclone tree or even better rclone lsjson, is it possible to make a feature like rclone lshtml or something like it? I can even send a link like this to anyone to show my files collection.
And hypothetical functionality like you ask would not consume less time. it would have to traverse all remote directories and list all files. rclone tree and rclone lsjson are faster as you limit scope what to show - only directories or only specific path.
You can improve mount speed by using cache pre-warming
rclone mount src mountpoint --rc --rc-addr 127.0.0.1:5575 --rc-no-auth