UPDATES 2019!

[Felix]

Yes, the gs-website is not on 2019 standards.

That is just a general statement.  What do you mean by 2019 standards ? PHP7 ?? Please be more specific.

Sometimes it's hard to find the needed plugin from the site.

All the most needed plugins are available:

multi language
custom templates
custom fields
custom components
custom pages
dynamic pages

Contrary to so many "popular" cms systems out there, GS was specifically made to get out of your way
and let you work your way  instead of working a cms system way based on rules. (and hit the walls)

Anything that "would be missing" is already out there as a library, or you simply code your own php or plugin.

I smell an out of the box