Weird DNS issue

The issue I am facing:

DNS issues directly on the Raspberry.

Details about my system:

Since today I am experiencing strange issues, but I haven't really touched anything, however, I found something interesting. I have set my router 's DNS settings back to for the time being, this works great on any other devices, but when I try to ping for example, it says: temporary failure in name resolution, once I start the pihole, it works instantly, which tells me my raspberry is still using the PiHole as the DNS server, but how?

I use netplan and I don't have any DNS related settings, it gets from the gateway/router itself.

What I have changed since installing Pi-hole:

I only changed the proxy to OpenLiteSpeed which runs on port 80 and 443, as I have that as my daily driver.

Please upload a debug log and post just the token URL that is generated after the log is uploaded by running the following command from the Pi-hole host terminal:

pihole -d

or do it through the Web interface:

Tools > Generate Debug Log

Sure, here you go:

Your device hosting Pi-hole is using Pi-hole for DNS resolution

-rw-r--r-- 1 root root 38 May 26 00:02 /etc/resolv.conf
   options ndots:0

Try, setting namserver in /etc/resolv.conf to any other (external) DNS server

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I also did have systemd-resolve disabled for some reason.

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Now it makes sense, thank you.

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