Yes Sure @freezing-airport-6809, I've been using Gitpod for a long time and let me explain you what it does, and I have replied to you on your review comment on my PR.
It is a interactive development environment (IDE) in your browser. It allows you to view and interact with this code directly in your browser without the need to clone it to your local machine.
I use it a lot becuase it saves space of your computer and its very easy to setup.
In simple words, it's a virtual environment which is connected with remote access to the pull or the repository, you can push, pull or make changes to the code directly.
If you see the Screenshots in pr of precommit that I shared, I ran the commands in Gitpod itself and didn't clone the repo on my local machine.
When you click on the badge which is sent by Gitpod bot on my PR, it will create a workspace and there we can make changes.
I hope you understood the real idea behind the pr.