J Leslie Turriff composed on 2023-05-15 19:02 (UTC-0500):
Depending on your login manager (gdm, tdm, etc.) there should be an option to choose a different window manager (Gnome, Trinity, etc.). Look for some sort of option button on the login screen.
That's for a same user usage, after logging out of the present session. I'm not sure what he wants can still be done without the extra session coming from logging in as a different user. Most DMs do support a menu option to switch to a different user without logging out, or trying from a tty with startx. These are after all multi-user operating systems. Officially, openSUSE hasn't supported startx for several years, but for some configurations, startx still works, and for some other distros, it's still and/or better supported. -- Evolution as taught in public schools is, like religion, based on faith, not based on science. Team OS/2 ** Reg. Linux User #211409 ** a11y rocks! Felix Miata