Is this like PowerAutomate, but for G Suite products?
Also I don't know why, looking at the site makes me think it's a candidate that Google is going to kill off without warning: https://www.google.com/script/start/
It's one of the Google products I worry least about, mainly because there are 15+ years of existing Google Sheets documents that people have built using it at this point. I don't think even Google would lightly break THAT many of their existing (often paid) users.
Says everyone using GCP services that get deprecated.
And it has had significant updates as well. The newer runtime is based on V8 using some clever way to isolate the code. Previously they used Mozilla Rhino as the runtime because it was easier to sandbox, but it was also very frustrating to work with.
Now the DX is much better with more recent and performant executions and a better UI.
If I sound like a sucker it's because I am and building with Apps Script is fun even with its limitations.
While Power Platform in comparison might be 100x more powerful for all I care and I still wouldn't touch it with a 10ft pole. Most frustrating experience I ever had.