Comment 12 for bug 1846790

(In reply to Michael Warner from comment #6)
> https://www.libreoffice.org/download/appimage/

Ah. How'd I miss that? For some reason I only found the PortableApps.com thing, which is Windows-only.

Alrighty ...
Appimage from the above URL, Basic-Fresh flavour, which gives the following version info

Version: 7.1.3.2 / LibreOffice Community
Build ID: 47f78053abe362b9384784d31a6e56f8511eb1c1
CPU threads: 24; OS: Linux 5.4; UI render: default; VCL: gtk3
Locale: en-US (en_UK); UI: en-US
Calc: threaded

is STILL AFFECTED by this bug, the behaviour is unchanged.