It probably makes your life easier. But I don’t actually know the development status of the plugin for Kirby 3. Ping @pedroborges
Using a plugin always means depending on third parties rather than your own code, which can be a good thing if the code is likely better than your own could ever be. But of course, using a plugin also has the usual downsides (you don’t know in advance if the plugin will see continuous development, when bugs are fixed, etc.).
If I did my own, I’d probably wrap it in a plugin as well rather then single snippets - for future re-use.