Mostly followed instructions from https://www.protondb.com/app/462780#1SZt3q1I5K but I didn't like steps 5-7 because I don't want to modify readonly files. Instead you can download cabextract package directly instead of installing it into the system:

1. navigate to https://archlinux.org/packages/community/x86_64/cabextract/ and select "Download From Mirror" link at the right,
2. extract downloaded file (it should be named like cabextract-1.11-1-x86_64.pkg.tar.zst),
3. in Konsole type export PATH="<path to extracted directory>/usr/bin:$PATH" (there should be a file <path to extracted directory>/usr/bin/cabextract),
4. to check that you did everything right you can type cabextract in Konsole, you should see some help message like cabextract: No cabinet files specified and NOT see message like bash: cabextract: command not found

Or, if you want just oneliner to download package, extract it and add cabextract to the PATH (so command could be found in this Konsole window) use this command:

wget https://archlinux.org/packages/community/x86_64/cabextract/download/ -O cabextract.tar.zst && mkdir cabextract && tar --use-compress-program=unzstd -xvf cabextract.tar.zst -C cabextract/ && export PATH="$(pwd)/cabextract/usr/bin:$PATH"