tldr but: don't use GitHub Actions. Its a mess, the availability is often atrocious, and the UI around it is _still_ as clunky as when they first rolled it out many years ago.
GitHub Actions is like Microsoft Teams. Nobody who knows better wants to use it, but it's slightly better than what most did before (email/jenkins/nothing) and came with the thing you're already using. At least your boss thinks it's better. And it's such a good deal!
A 1000% yes, because it means the default experice most devs have of CI is using ephemeral runners which is a massive win for security and build rot.
Every company I've worked at with stateful runners was a security incident begging to happen, not to mention builds that would do different things depending on what runner host you got placed on (devs manually installing different versions of things on hosts, etc)
Does anyone use GHA - full stop? Their stuff seems "me too" in most cases, they are definitely a follower, like microsoft Bing search ... google AI ...
To expand on this, CircleCI lets you easily ssh into a run so you can debug it as if you were debugging it on your own machine. I cannot tell you how many times this has saved me countless hours because you don't need to wait for your changes to build and then subsequently fail repeatedly, drastically shortening the iteration cycle.
Not sure why this was downvoted/flagged, I do use Drone CI myself currently and it's quite pleasant: https://www.drone.io/
There's also the Woodpecker CI fork, which has a very similar user experience: https://woodpecker-ci.org/
When combined with Docker images, it's quite pleasant to use - you define what environment you want for the CI/CD steps, what configuration/secrets you need and define the steps (which can also just be a collection of scripts that you can run locally if need be), that's it.
Standalone, so you can integrate it with Gogs, Gitea or similar solutions for source control and perhaps a bit simpler than GitLab CI (which I also think is lovely, though maintaining on-prem GitLab isn't quite a nice experience all the time, not that you have to do that).
There are better solutions out there.