i’m just seconding the advice above.
unless you are content to just accept whatever conditions the material gives you and not want to make any changes, it is gonna be worthwhile to at least get an idea how they work.
They are not all the same, though many share similar features. The way an author codes the thing can make a difference in how easy it is for you to make changes - that is probably the biggest difference you might notice between one or another.
Besides that, some may include tons of features that you won’t use, but not one little detail that you do want. If you take a few days to do some tutorials like shared above that will make it so that you can make the changes that you want to make more readily, and also help you make a more informed purchase.
There is also a good one available free in the Rural Australia marketplace project. In general I think purchasing these things is kinda money wasted since you can make your own in a few hours watching a tutorial, but that’s just opinion.