Best Utilization for network ports

I am building out a 3 node cluster for home lab use. Each node has (2) 2.5 gb nics which currently plug into 1 gb ports on my switch, (2) SFP+ ports, and (2) 40 gb ports. I currently have the 40 gb configured in a mesh network. I would like to separate everything out to avoid network bottlenecks as much as possible.

My thoughts for which nic to use for which service (correct me if there are incorrect assumptions or better ways to do any of it)

Proxmox Management: 2.5G
Multi Vlan VM's...

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