> https://meet.google.com/yvr-mbth-xdo

The domain no. DNS Yes. It can take a few minutes to hours for DNS changes to propagate. Just depends on when you configured the record to when you ran certbot. If you ran it again now id expect it to be fine.

This tool works fine for checking that

https://dnschecker.org/

I would highly recommend following the instructions here to install nginx. It should be fine if you already have nginx installed.

https://nginx.org/en/linux_packages.html#Ubuntu

Final thing. I assume you are using an IPv4 address? v6 are becoming more common for residential so I'm just checking. It should look something like this: 56.36.9.10 and not like this 2001:0db8:85a3:0000:0000:8a2e:0370:7334

You cannot put ipv6 addresses into an A record is why I ask. Your dns provider shouldn't let you, but wanted to make sure.