RFC 2182 details the operation and functionality of secondary DNS servers. Which defines/influences how resolvers behave with multiple DNS servers.

When you specify more than one DNS server for network clients, the order in which these servers are used is not random. The following sequence is observed:

Primary DNS Server: Clients will first attempt to use the primary DNS server specified in their network settings. This server is often considered the default.

Secondary DNS Server: If the primary DNS server is unavailable or unable to resolve a query, clients will then attempt to use the secondary DNS server. This server acts as a backup.

So in OPs case his Pihole will always be used if it's available, and only when it's not will the secondary be used.

I get the distinct feeling that the EU will have something to say about a US tech giant baking spyware into web browser that EU citizens use.

I first deployed ESX back in 2003 and from then on I was a huge fan of VMware. So, watching Broadcoms changes unfold is a little sad.

What i really wanted to ask is, for meduim to large enterprises that want on-prem infrastructures what are their options nowadays? I don't work in this area any more so I'm out of touch.

You could also consider self employment/consultancy.

Would you recommend this if OP is in the UK?

They can't stop synth meat coming in at the minute, but they can after they decide to Italeave... that doesn't sound as good as Brexit, but I wouldn't be surprised if it happened.

"He failed to properly disclose", that's one way of saying that he bareface lied.

Its OK though he's going to pay some of it himself so that the tax payer only has to cough up £8k.

He should be forced to pay it all and sacked.

As far as Microsoft is concerned it looks like I now live in Ireland.

As someone who is sadly no longer part of the EEA, I wonder what would happen if you selected an EEA region during install, removed everything you want gone, then set your region properly?