General question about filesystems, LVM, etc.

Hi,
i am just building up my private server with proxmox.
My goal is to have proxmox installed on my "central" filesystem (it is a usb-stick, already running) and for each vm i want another usb-stick with its own filesystem. so every vm will be independent.
as far as i see i have to do this in proxmox with LVM. otherwise i can't use a stick, correct?

would it be possible, to use a stick without using LVM (i don't see a benefit using LVM when using complete usb-sticks for simple filesystems)?

the benefit is, if something fails with my server,
- i am able to take each vm and put it into another server.
- in case of a filesystem error only one vm is affected (if the proxmox-fs is affected, the point before is considered)
- i can simply switch vms with filesystems to other servers, backup them or copy them.
- the complexity is reduced, because each vm is more or less on its usb-stick

the performance is quite ok currently, so i have no need for ssd or anything like this.

kind regards,
astrakid