Wando

Not really, I have latest version and same problem:
https://lkb.hr/
Table’s not resizing properly for various screen sizes.

Problem was Infinite scroll plugin that’s not supported by Divi.
Deactivated it and all is well.
…
Infinite Scroll

At this time, your theme, Divi, doesn’t support Infinite Scroll. Unlike other Jetpack modules, Infinite Scroll needs information from your theme to function properly.

Until your theme supports Infinite Scroll, you won’t be able to activate this module.

If you are a theme author, you can learn about adding support for Infinite Scroll at https://jetpack.me/support/infinite-scroll/.

When I deactivate Jetpack problem is gone.
When I use any other theme there is also no problem.
Problem exists only with Divi theme.