There is a lot but I think you will find a lot of them more enterprise focused rather than consumer. For apps installed to home, why aren't you preserving your /home partition? For system apps, could you create an image? (Although it should be basically a one liner?) There is a lot of missing detail, why are you reinstalling, what distribution(s)?

It's probably better to write a script in a repo that downloads and installs everything..

Then for configuration files create a dotfiles repo. I use chezmoi but there are a bunch of solutions for this.