New process for Portugal residence permit extension

Hi everyone,

I  am wondering if anyone can share their recent (2024) experience in extending a residence permit after the initial 2 year period. As I understand after the re-organisation of the immigration service in Portugal in H2 2023 they introduced changes to this process. The new website provides limited information, something like  "you can apply 90-30 days prior to the expiration date". I would appreciate if someone can help to understand the following:

• Does the new process require face to face visit to the immigration office or everything is processed on-line?
• If I apply for permit extension 90 days prior to the expiration date of the current one (initial 2 year permit) how quickly the interview appointment is arranged (if the interview is required at al)?
• If I apply 90 days prior to the expiration date of the existing permit, is it realistic to get a new permit prior to the expiration date of the current one?

Thanks in advance