According to travel agents in the emirates of Abu Dhabi and Dubai, extension of UAE visit visa without exiting the country has been stopped.The travel agents has been informed by the immigration department that visit visa extension without exiting the country has been stopped. Usually, it was an inside-country visa, so people need not leave the UAE. Earlier, there was relaxation due to the Covid-19 pandemic, and people didn't need to exit the country. But now the relaxation has been withdrawn. This is the information to travel agents from the immigration department.
Renewals and extensions of visit visas have been stopped inside the country. You should exit the country and then apply. This is similar to norms followed in pre-pandemic days. Applications for visit visas are also getting rejected in certain cases. The immigration department has even reduced the 90-day visa to 60 days.