1sudo resolvectl monitor

then navigating to a website should print you the DNS requests.

1[ecomaikgolf@laptop ~/]$ sudo resolvectl monitor
2→ Q: www.google.com IN A
3→ Q: www.google.com IN AAAA
4← S: success
5← A: www.google.com IN AAAA 2a00:1450:4001:80f::2004
6← A: www.google.com IN A 142.250.181.228
7
8→ Q: www.google.com IN A
9→ Q: www.google.com IN AAAA
10← S: success
11← A: www.google.com IN A 142.250.181.228
12← A: www.google.com IN AAAA 2a00:1450:4001:82f::2004
13
14→ Q: www.google.com IN A
15→ Q: www.google.com IN AAAA
16← S: success
17← A: www.google.com IN A 142.250.181.228
18← A: www.google.com IN AAAA 2a00:1450:4001:82f::2004

Source: https://biriukov.dev/docs/resolver-dual-stack-application/10-systemd-resolved/