WARP with VPN?

Hello Community.
For some reason I need to keep my VPN on. But I noticed that I can’t enable WARP when the VPN is on. I noticed this sentence in the WARP documentation “WARP also does not allow you to pretend to be accessing the Internet from a different country than the one you are currently in. than the one you are currently in.”, I think this is the reason.

Does anyone know which domain WARP will try to connect to? That way I can add this domain to the VPN’s exclusion list. Or is there any way to get WARP proxied by a VPN (maybe it would be more secure)?

VPN on the router, if there is such a function.

Thanks for your reply, I am using VPN on my router and have global proxy enabled. But WARP is not working.
Considering that the documentation says that WARP “not allow you to pretend to be accessing the Internet from a different country than the one you are currently in” , I think this may be because WARP is actively refusing to work?