The problem is that those window managers (in my opinion) is that they fail to do the basics well. You have to find the individual components like the bar if the WM comes with it and write your own scripts or hopefully find one that someone else wrote to get the things that are built into Gnome and KDE and work out of the box. You gotta set up your own notifications daemon. You need to configure how to launch applications through something like rofi or by configuring keybinds in your config. You need to configure your login windows. It can be enjoyable to a point but it can also just become really frustrating to deal with.
I think PopOS' tiling WM built on top of Gnome is pretty good but Gnome itself is frustrating trying to configure. KDE is highly configurable but its base configuration/experience is worse than Gnome.
The closest I've gotten to something that does both is replacing xfce's xfwm with i3 but ultimately it can easily break since it depends on turning off xfwm in sessions and making i3 an autolaunch item.
Linux is obviously the best for tiling WMs, but they have their own set of issues that traditional WMs on popular DEs in linux don't. Windows and MacOS have even more issues when attempting to implement them. I feel like there's just no winning here, regardless of what OS you're using.