I think NLnet Labs is indeed like 50% funded through German Sovereign Tech Fund, but most of NLnet + the rest of NLnet Labs is funded via EU project funds or other public programs. I don't think NLnet receives anything at all from the Dutch government AFAIK, and NLnet Labs gets tiny amount of funds via Dutch SIDN subsidy I guess, but that's pretty much it.

This is all (tried to) rememberings from meetings in 2024 sometime, so could be different today.

NLnet Labs was started by NLnet but now independent.

https://nlnetlabs.is.not.nlnet.nl/

Funding for NLnet Labs is largely from paying customers for development of DNS software.

NLnet funds development of the full stack of communication technologies from chip design to office suites. Funding for NLnet comes from public institutions, private companies and citizens.