For immigration and USCIS purposes, she can use any combination of her names on the marriage certificate.
Example: Mary Smith marries John Jones. She can use:
Mary Smith
Mary Jones
Mary Smith Jones
Mary Smith-Jones
The opposite was true in my wife's case. Good luck.
Filed I-751 in March 2019
Filed N-400 in Aug 2022
I-751 and N-400 both approved 4 months later in combo interview
I have no doubt that we would still be waiting for the I-751 approval had she not filed the N-400.
AP is open-ended. There is just no way to know how long it will take. It could be days, weeks, months, or even years. Your only options are to wait and/or sue the US Government.
That is normal. USCIS has increased the extension letters several times over the last few years. Your latest extension letter is the most current. It extends the expiration date printed on your Green card by 48 months.
Visa fraud is not a nice option. Entering the US as a visitor with the intent to stay and adjust is visa fraud. The Terms of Service of VJ prohibits discussing this further.
You cannot enter the US as a visitor with the intent to stay and adjust status. That would be visa fraud. Be prepared to show proof of your strong ties to home country.
You are mistaken. USCIS was not issuing 48 month extension letters in September 2022. The CURRENT extension letters will extend the expiration date printed on the Green Card for 48 months.
US immigration is expensive. The US immigration process requires a great deal of knowledge, planning, time, patience, and money. Marry online, meet, and start the spousal visa process.