Enough to find and overcome issues with how you use it.

If you quit a distro before you run into an issue then that’s not very helpful when it comes time to make a choice

If you aren’t able to overcome and fix an issue that you run into while using the computer the way you would normally, then your probably not learning much about Linux.

My recommendation is to go for at least a minor kernel upgrade.

If all you want to do is test out distros before you commit to an install, then check out https://distrosea.com/