m_user

So changing the employer after 180 days is not allowed without EAD?

you are not supposed to travel out of US while AP is pending, it will be considered as if you have abandoned your AP process.

The 180-day portability rule provides that if a person has submitted an application for I-485 adjustment of status and has an I-140 visa petition approved under one of the Employment-Based preference categories, he can change jobs and still adjust his status as long as the new job is in the same or a similar occupation and his application for adjustment of status has been pending over 180 days. Before approving the application for adjustment of status, the USCIS will request a letter from the new employer to verify that an offer of permanent employment exists. The letter must contain a description of the job as well as the salary. The USCIS will use this letter to determine whether the job meets the same or similar occupation requirement. It's a 180 day rule applies from the day your application reached USCIS that in from 28th Nov 2020. If you change the job before the 180 days are complete then I guess your whole 485 is void. I may be not so correct here but that's what people have been saying.

forget about nov 2020, I applied in 3rd week Oct 2020 and we haven't received the finder print notices. If you are lucky then you should receive the invitation/notices in next 1-1.5 month. They are overwhelmed with cases and corona.