What does the 'Share User Directory' setting even do? (plus potential bug)

[esrevinue]

Hello :)

I'm using bottles on Arch Linux, installed through the AUR (as the flatpak version is incompatible with my use case for bottles), and I wanted to know what the purpose of the setting 'Share User Directory' when creating a new bottle is for. I can't find anything online about this. I assume its for the flatpak version where you want to expose your own data to the bottle. But the strangest thing is, when I have it set for this native version of bottles, I get a confusing line on the log:

The Wine config is being updated…
Wine config updated!
Running as Flatpak, sandboxing userdir…
Sandboxing userdir…
Setting Windows version…
Apply CMD default settings…

For some reason, only when this 'Share User Directory' setting is enabled, bottles says that it's, 'Running as Flatpak, sandboxing userdir…' which is surely the opposite of what this setting is supposed to do?

Like I said, the funny thing is, is that this line doesn't appear when the 'Share User Directory' option is disabled.

Am I doing something wrong? Or is this a bug?

Thanks :)