This is an excellent article by an esteemed colleague.

https://www.immigration.net/2023/06/15/the-coming-apocalypse-for-employment-based-immigrants/

It lays out a very convincing case that immigration delays are going to be with us for quite some time. In light of these delays, it is becoming increasingly apparent that mandamus lawsuits will play a crucial role. Both employers and immigrant employees will likely find these lawsuits an essential tool to expedite decisions on their petitions within a reasonable time frame.