Do you think it would be better to run the full node over VPN + Tor?
Better for what?It depends on the application that you will give to that node, if you want to use it as your personal node and you will always use it from LAN then I don't think you will need VPN + TOR. But if you will use it as a public node with the idea to access from other networks, then user VPN + TOR could be a wise move.
Or can you run the node over the clearnet without fear?
What's your fear my friend? until now no one has ended up in Jail for running a Node. And If your fear is about cyber-security, then isn't about Node by its serf, the problem is how you manage your network.
VPN router
Tor
My fear is that my IP appears somewhere, I would like to remain as anonymous as possible.
Do you think it would be better to run the full node over VPN + Tor?
You should never run VPN together with Tor for anything, including for Bitcoin node.Running BTC node with Tor sergice is used a lot and it works perfectly fine for purpose of hiding your real IP address.
Or can you run the node over the clearnet without fear?
Running Tor, VPN or Bitcoin node can be interpreted as suspicious behavior in some countries, so don't ask other people if you should fear something.PS
You are asking so many silly questions that I seriously doubt you will ever run full node, make multisig setup, etc...
I want to do everything right, these are not silly questions for me, I'd rather ask than make any mistakes later
you are not forced to answer, you can just ignore my posts if it annoys you