lsblk shows:
loop1 7:1 0 59.1M 1 loop /snap/core20/1782
loop2 7:2 0 59.1M 1 loop /snap/core20/1826
loop3 7:3 0 43.2M 1 loop /snap/snapd/17954
loop4 7:4 0 43.2M 1 loop /snap/snapd/18363
I understand that these exist in the relevant directory structure each with a soft link for "current" pointing to the latest version - but can I prevent the older one from being mounted? Alternatively, can I delete the /snap/core20/1782 and snap/snapd/17954 directories?