Prevent MRU re-sorting of IME list on switching input method so it will always be the same sequence as you set in Settings.
$ git clone https://github.com/AlynxZhou/gnome-shell-extension-fixed-ime-list.git ~/.local/share/gnome-shell/extensions/fixedimelist@alynx.one
or install it from https://extensions.gnome.org/extension/3663/fixed-ime-list/.
Then restart GNOME Shell and enable Fixed IME List from GNOME Extensions.
The person who has more then 2 input method engines in GNOME Shell like me (English, Simplified Chinese, Japanese).
I hate the MRU IME list in GNOME Shell.
I am not interested in who added this "feature" into GNOME Shell, but you see, I could set my own IME sequence in GNOME Control Center, so I will know how many times I should press before I press the switching keybindings. For example, English, Simplified Chinese, Japanese, and I am in Simplified Chinese, I just press twice for English or once for Japanese.
But with this "feature", things are messed. If I switch from English to Simplified Chinese, what's my list now? How many times I need to press to switch to Japanese? How long will I use to emulate the MRU operations in my brain? Maybe some people have a different brain that can emulate this quickly, but I am not.
This extension just hooked some functions for InputSourceManager in GNOME Shell so it will stop updating the annoying MRU IME list, and will restore your list once enabled. Some dirty hack, but it works.
Install this extension, and enable it in GNOME Extensions app. Your brain is saved.
Fcitx/KDE/[Input more choice if you are not a GNOME user] is good, I agree.
But how much I love your choice is the same as how much you love my choice, and I am doing things to make my choice better.
I won't drop 99% advantages for me because of only 1% disadvantages.
Upstream was not MRU before some one added this "feature", and it will cost a lot of time to argue "whether user prefer to MRU" if you send a MR to revert it. I'd like to do before I say.
Send an issue, I will upgrade it if I am still using it.