How tu run and test for Steam build?

How can I test the upgraded version of steam game?
After building an upgraded version of this game a few days ago in Unity,
I uploaded it to Steam to test the files and folders.

I created a separate test package on Steam and created a separate depot.

So after uploading, if you run the game, the old version that is still in live service will run.

What if I want to run the version I just uploaded for testing purposes only?

Why did Steam make it so complicated?

Do I have to go through the process of uploading to Steam like this even for testing?

Is there any way to just run it locally on my computer and test it?

Look up “beta branch” on steam. You will find the documents there on how to setup the test branch.