"User SFZ Folder" being ignored

[it9exm]

Hi,
When I choose the option to load SFZ presets from the dropdown menu, the lv2 plugin directory is opened by default. Setting "User SFZ Folder" has no effect.
I've also tried to set the SFZ_PATH environment variable as suggested in the discord chat, but nothing changed at all.
I would expect the plugin to open the directory where sound libraries are stored, maybe also having a preference in settings to remember the latest working directory would be good.
Issue verified against the develop flavor of the sfizz package in OBS, which is updated to the latest commit [ec4656d]

[redtide]

My bad, I realized too late that this is a duplicate of #94, closing the other and report here the original message:

This at least on Linux:

• the LV2 file dialog opens by default in the sfizz plugin path, which is not great.
  It would be nice to save somewhere the last used directory and open it instead.
• when trying to open the SFZ folder in the default file manager nothing happens

These 2 issues doesn't happen in VST3.

Other than the above it also causes some visual artifacts on the screen now here on Linux, which makes it also hard to continue to work.

@it9exm mentioned a crackling issue that matches the description of this comment on Discord.