Is it obligatory to leave when performing adhkar in the mosque due to the presence of a group of Sufis performing dhikr collectively, or is it permissible to stay and ignore their actions?

It is sunnah for a Muslim to remain in the mosque after the obligatory prayers, especially after Fajr and Asr, to engage in dhikr and recite the Qur'an, while lowering one's voice so as not to disturb those praying. If the voices of those praying are loud due to an innovated collective dhikr, then it is preferable to complete the dhikr at home, or to seek another mosque that is closer to the Sunnah, while trying to advise them kindly if possible without causing harm.