Yes.

I am using the binary. Just running it inside a container instead of a VM.

overlay fs?

Yes.

Since originally writing the post I have switched to a rootless podman container. Running it how I did before (inside a VM) would simply yield user_id=1000,group_id=1000 I think.

rw,nosuid,nodev,relatime,user_id=0,group_id=0

do you need them all at the same time?

I need to access all files conveniently and transparently depending on what I need at work in that particular moment.

are they mostly the same size and type?

Hard no.

strace can be very verbose and requires a lot of knowledge that i doubt i can share through comments back and forth.

No worries. Thank a lot nonetheless.

is creating an intermediary like others have commented on in this post an option?

What do you mean by intermediary? Do you mean syncing the files with the VM and then sharing the synced copy with the host?That wouldn’t work since my drive is smaller than the cloud drive and I need all the files on-demand.

do you have to provide a username/password or token when you try to access the drive now?

I do but it’s through the proprietary GUI of the binary which has no CLI or API I can use.

I just checked and it is mounted as a fuse drive.

do you know how to use strace?

A very confident NO :)

The cloud binary is proprietary and it’s not supported by rclone unless I find out how the binary works but I doubt it uses something standardized like WebDAV underneath.

The cloud drive is mounted on the guest, yes, but once I mount it with virtiofs in order to share it with the host it gets unmounted and I end up with an empty folder. bind doesn’t work either.

That would be impossible since the cloud drive is 2TB and my physical storage space is under 500GB in size.

I have no idea how it is mounted (how can I find out?) because the binary is proprietary. This is why it is contained inside a virtual machine.

The cloud drive is mounted inside a virtual machine for security purposes as the binary is proprietary and I do not want to mount it on the host (bwrap and the like introduce a whole lot of problems, the drive doesn’t sync anymore and I have to relogin each time). I do not use the virtual machine per se, I just start it and leave it be.