I remember CVS during my early Linux days. At work it was SourceSafe and around the 2010 era, worked for companies using TFS or SVN, etc.
Each one of these had there issues. Some had a better relationship with SVN than others. I did not mind it. However, I HATED SourceSafe! Glad to never touch that again!
When distributed version controls started to become a thing, I played with git, mercurial and bazaar before they were common. I liked them all better than SVN. Eventually I worked for a company using Mercurial but it wasn't long before git was the breadwinner and replaced practically everything else.
Personally, the only reason I ended up on git is because is solved the problem of doing local commits. Many times I was not on the internet or local network, but I can commit whenever I like and push when available to do so. This, for me, was a HUGE win!
Now, I dont have a reason to switch to something else. Its not comparable like moving from SVN to git. Could there be some cool or simpler features? Maybe. Regardless I hardly have issues with git overall to cause me to look about.
The only "issue" I have came across with git is its not great for large binary files, or for storing a collection of images, etc. For coding - its awesome.
I guess the only way I will starting considering alternatives is if the git team decide to make terrible choices.