Running Pi-hole on Pi 5 being used as a desktop?

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Expected Behaviour:

[Replace this text with what you think should be happening. Please include as much detail as possible including, but not limited to:
-operating system
-hardware]

Actual Behaviour:

Been running Pi-hole successfully on a headless Pi 3B+ since this was available. But have noticed when using the browser on the Bullseye Desktop (out of curiosity) ads coming & going? OK, I currently got a new Pi 5 with SSD (Bookworm installed) for which hardware performance is finally usable as a real desktop (quite impressive actually). And my question is... could there be a problem running the DNS server (I use Pi-hole's DHCP as well) on the same local IP as a Desktop, or is what I saw just the poor response on the older hardware? Should it be OK pointing the router to the same IP for DNS/DHCP as a running system is on? Comments please?

DES

Debug Token:

[Replace this text with the debug token provided from running pihole -d (or running the debug script through the web interface]