When will unpublished apps be removed/depreciated from Shopify?

[Maciej_Regula]

When will unpublished apps be removed/depreciated from Shopify?

Last year we received an email that effective September 1, 2022 merchants will be able to install only public and custom apps. 

There was also a statement that unpublished apps will be deprecated in Q2 2023.

Do you know exact dates of depreciation? And what does it mean depreciated? Will they be removed?