If the tiling is automatic and the users dont know how to change the size of the window manually (if that window manager allows that).
What if on the first boot the tiling could be explained by a welcome app (kinda like what KDE has), it would explain all of the shortcuts and then you could bring up all of the shortcuts with a simple shortcut. I personally use Sway and I think i3 based WMs are better, I believe on pretty much all i3 based WMs its as simple as super + r for resizing mode and esc to leave.
I have a lot of respect for Sway and wlroots developers. They contributed heavily to the desktop Linux ecosystem. However, if you need to explain that much at first boot; you may overload some users. I’m sure tiling in Plasma will get better as they splify configuration and figure out better defaults.
