The Surprising Truth About Linux File Systems

I was working on a project recently and noticed that my disk space was filling up quickly. I started investigating and realized that I had a lot of unnecessary files taking up space. But what really caught my attention was how Linux handles file systems.
I discovered that Linux has a few different file systems, such as ext4, XFS, and Btrfs, each with its own strengths and weaknesses.
For example, did you know that ext4 is the most commonly used file system in Linux, but it's not the most efficient?
I learned that using the right file system for your needs can make a huge difference in performance.
So, what's your go-to file system for your Linux projects? Do you have a favorite?