How to completely remove locale from Manjaro Linux?

I recently had the (in hindsight stupid) ideas to enable a second locale on my computer in addition to en_CA. This second locale was zh_CN. To make sure it worked (and to "check it out"), I turned it on. It worked successfully so I turned it back to English. On the next boot, I noticed that some apps (not all) were still in Chinese. In response to this, I removed zh_CN completely from the active locales list in the KDE Settings Manager. This did not fix the issue.

In addition, all coreutils commands were in Chinese, which made doing many things very difficult.

I did lots of research and tried many things:

export LC_ALL=C : This fixed the issue on the command line BUT UTF-8 wouldn’t work

Setting every locale to en_CA.UTF-8 : Did not work

Regenerating only English locales: Did not work

export LANGUAGE=en_CA.UTF-8 : Did work for the CLI but some things still were in Chinese

localepurge everything but English : Did work for most things, but it still isn’t completely removed.

Despite all of my efforts, I still run into the occasional blocks of Chinese, namely in the Manjaro Package Manager:

The output of my locale command is

LANG=en_US.UTF-8
LC_CTYPE="en_US.UTF-8"
LC_NUMERIC=en_CA.UTF-8
LC_TIME=en_CA.UTF-8
LC_COLLATE="en_US.UTF-8"
LC_MONETARY=en_CA.UTF-8
LC_MESSAGES="en_US.UTF-8"
LC_PAPER=en_CA.UTF-8
LC_NAME=en_CA.UTF-8
LC_ADDRESS=en_CA.UTF-8
LC_TELEPHONE=en_CA.UTF-8
LC_MEASUREMENT=en_CA.UTF-8
LC_IDENTIFICATION=en_CA.UTF-8

It all looks correct. Can someone help me completely rid my system of this locale?

Thanks in advance. (Also apologies in advance if I am doing something stupid or missing something obvious)

My OS is Manjaro Linux KDE Edition 23.0.3 (Plasma 5.27.8)