Is this still an issue?
If yes, could you be more specific about which file picker dialog is meant?
I assume it is "Open Project" on the splash screen?
Which class is used to store such things?

Thank you for asking, yes, this is still an issue.

The class that implements this dialog is calles QtFileDialog. It is wrapping the QFileDialog and adds some more functionality. I think the methods that need to be changed are:

getFileNamesAndDirectories
getExistingDirectory
getOpenFileName
showSaveFileDialog

The filepicker location sould be stored in the ApplicationSettings.xml file which is managed by the ApplicationSettings class.

Thank you for your reply. The code is mostly uncommented, that makes it difficult to dive in.
I have a (very) small patch that does the job - i think.

So whenever you open a project the user/lastUsedProjectsPath gets updated and will be the default path for the next "open project" - even after restart.

I dont know if it makes sense to change every file picker dialog that way. Especcially of you create a new project its probably annoying and not very helpful.