First thing I’d do is to look at the client (fedora) journal for anything funky happening.

‘sudo systemctl status nfs-client’

Since it’s random I assume you won’t have any timeout in your /etc/fstab but it might be worth taking a look anyway.

Be aware that if the network drops the NFS will be disconnected and won’t auto-reconnect so this could also be the issue.

I don’t know if it plays well with container mounted volume, but looking at autofs could be a solution to auto-remount the share. I use it profusely for network mounted home directories.

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VM is still windows tho, just one layer deeper.

Freecad is OK but it wouldn’t even be considered in a commercial setting like I’m working in. I work with Catia, Solidworks and Polyworks. None on those run on Linux.

Sadly Windows is still required for a lot of cad softwares.

Another solution is to do z-hop inlay

https://m.youtube.com/watch?v=0Sla-vIsvh4