theoretically yeah but you might have some issues with blocklists on other servers. there are cheap domain names available if even $1/yr is an option for you https://gen.xyz/1111b
edit to add- if you buy a domain from cloudflare or any other domain registrar with an API, you can create your own dynamic DNS by running a script on your server to update the domain's DNS automatically in a similar way to duckdns. more reading available at https://github.com/ddclient/ddclient
🎉🎉🎉