content in two responsive columns?

How could content be added in two responsive columns?

My editors love the “classic editor,” but sometimes it’s necessary to put content in two simple columns.

Is this possible?

PS: What if you implement this outdated plugin within your plugin? 😉
https://wordpress.org/plugins/lightweight-grid-columns