Yep same DDClient is super simple to setup with name cheap. Followed ip address changes with very little if any down time. I've never noticed between ip changes.

Same! Except I use windows and they have a small app that you can install and run in the background which will update the IP if needed.

I also used duckdns for years before moving to this and I never had any issues using that either. It was the same thing, small app that ran on your machine and you needed the token and it just worked.