Sky Broadband with Sky Q :- unbundling

The situation;

There is a site I'm working at which currently has a package with a pre-2019 Sky Q hub (the horizontal one) providing FTTC. This is nowhere near any of the Sky Q boxes.

We're looking at unbundling and moving to a more business oriented ISP, obviously with a different router. We need to keep Sky Q working.

I'm assuming (dangerous, I know) that the primary Sky Q box would then just connect via regular wi-fi, cable etc. back to the new router and we wouldn't need Sky to come back to reinstall things.

Are there any pitfalls I need to be aware of, apart from contract issues?

I have had Sky Q with a few different ISPs. The Sky Q TV box should work with any Internet connection. There are a few mesh type networking capabilities that are enabled when it is paired with a Sky router but for TV, streaming, netflix, etc it will all work just fine with another ISP (assuming the ISP doesn't block Sky traffic but I am not sure why any would).

Reconfiguring the Sky box for new wifi is simple enough - and something that many people will have done as they change routers, IP, wifi password, etc.

Thank you very much for that. I'll press ahead with the migration