Comment # 2 on bug 1197907 from QK ZHU

Created attachment 857703 [details]
screenshot of SLE-Classic  in GNOME42

More background information for people who can not access bsc#1197175:

As you can see in the screenshot, currently SLE-Classic is not compatible with
GNOME 42 which makes this mode not usable. This is caused by the theme changes
of GNOME 42:
- https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/2104
- https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/2111
- https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/2150
- https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/2206

After careful consideration, we decide to deprecate SLE-Classic in GNOME 42,
please find the reason below:
-------------

1. Brief history of SLE-Classic

Back in time when we were preparing SUSE Linux Enterprise 12, GNOME 3 brought
in radical changes compared with GNOME 2. So we developed SLE-Classic mode
which uses a single bottom panel, similar to GNOME desktop as available on SUSE
Linux Enterprise 11(GNOME 2). This setup is the default mode on SLE12 since it
could give users an easier migration from earlier SUSE Linux Enterprise desktop
environments.

With the coming of SLE15 and GNOME 3.26, SLE-Classic was retired from the
default mode but is still available as an optional login session. Like other
software projects, it is always wise to accept the newer (morden) version ;-)

2. SLE-Classic in openSUSE

It was brought in openSUSE since Leap 42.2:
-
https://www.reddit.com/r/openSUSE/comments/54kcr0/sle_classic_mode_in_opensuse/

3. Why drop it in GNOME 42

You could see the sign when we demoted it in SLE15, and it proved harder to
maintain/rebase the patch set in every major GNOME version release. And we
receive barely any bug/feedback from the community which means lacking users.
So it pays a lot to maintain but gains little. Furthermore, SLE-Classic doesn't
support Wayland.

GNOME 42 brings in quite some theme changes which make SLE-Classic requires a
more heavy patch set to be compatible with the new version. And as a product of
a transition period, SLE-Classic has accomplished its mission successfully, so
it's time to say goodby.

4. Alternative choices

For anyone who misses the way how GNOME functions in SLE-Classic, there are a
bunch of extensions you could use, and they are actively maintained:
- https://extensions.gnome.org/extension/3628/arcmenu/
- https://extensions.gnome.org/extension/1160/dash-to-panel/
- https://extensions.gnome.org/extension/3843/just-perfection/
- https://extensions.gnome.org/extension/4764/bottompanel/
- https://www.lifewire.com/how-to-make-gnome-more-like-windows-4689421