Is running full node anything helpful for BTC network?

Basically, I have a homelab and lately got orangepilled by my work colleague. I wanted to "support" the community and give something back so I've set up full node, I've read that it can help with the transaction pre check.

I am doing anything it's just waste of energy since all the work is done by miners? It's just a full node without lightning etc.

I am not using it for anonymous stuff, as my wallet etc.