Can't access website by domain name, but can by IP

I submitted this question to support about a month ago, but as I haven’t received a response yet I figured I’d ask the community:

I have a droplet setup with an IP of 134.209.63.71. On this droplet, I have setup a website (I setup ssh authentication and can use SFTP to transfer my website to the server, I also setup NGINX and a ufw firewall per DigitalOcean instructions). I also have the domain “kevinthomas.dev” registered through Google Domains. In Google Domains, I’m using Google’s name servers and have setup a custom resource “A” record pointing the kevinthomas.dev domain to the IP of 134.209.63.71. However, when I try and enter “kevinthomas.dev” in my browser, it will not connect. I can access the website by typing in the IP directly, but can’t access it by the domain name.

I have already contacted Google Domains about this and they told me that, from their end, everyone looks setup correctly, and that I should wait 48 hours for the DNS to propagate. I’ve waited over 3 days now, and it’s still not working, and when I contacted them again they told me that, once again, everything looks fine on their end, so I should contact the place that is hosting my server. I’m not sure what steps to take at this point to get my domain working.

Thanks in advance for any help!