The home security confinement interface disallows the snap to access hidden files right under the user’s home directory. This is, for example, to prevent the application to steal critical information (private keys($HOME/.ssh/id_rsa), command history($HOME/.bash_history), etc.) and upload it to a publisher controlled remote server while gaining access to other regular files in your home directory.
The problem of losing access, though, can be mitigated by the introduction of the Desktop Portals, however it requires software stack and OS support and will need time to be incorporated into every snap on every system.
This is exactly NOT the case as Ubuntu (as well as many non rolling-release distributions) practice Feature Freeze that stops introducing new upstream software releases during its development cycle and focuses on fixing bugs found on the current version.
Snaps, in fact, is a solution to mitigate this problem as it offers user alternatives to use recent (but may be unstable) software releases on one’s need.