Comment by brynet

It depends on what you need for your daily use, OpenBSD has ports of common desktop environments, KDE Plasma, GNOME. In fact, thanks to KDE and GNOME port maintainers, Rafael Sadowski, and Antoine Jacoutot, respectively, OpenBSD 7.6 -current has the latest versions of both (KDE Plasma Desktop 6.3.1, GNOME 47).

I recently checked out KDE 6 for the first time last year, it really is as easy running as 'pkg_add kde kde-plasma kde-plasma-extras' and then reading through the local pkg-readme file, that said if you're not familiar with OpenBSD it won't be like other systems where it comes preinstalled and preconfigured.

https://brynet.ca/article-l13gen2.html

There's many popular window mangers and applications you can install using the package tools, as you'd expect, including Chromium and Firefox, but you can quickly search here: https://openbsd.app/