Is reciting the Qur’an at a wedding considered a Bidʻah (innovation), and what is the advice for those who request a wedding celebration that includes music and intermingling?

The Sunnah concerning weddings is playing the daff (tambourine) and permissible singing, based on what Ibn Majah narrated from Ibn Abbas (may Allah be pleased with them both) that the Prophet (peace be upon him) said: "Did you send someone with her to sing?" And his (peace be upon him) saying: "The distinction between lawful and unlawful is the daff and the voice in marriage." So, if it is possible to bring a group that adheres to permissible singing without musical instruments or polytheistic words, and the gathering is free from unlawful mixing, then this is good. As for reciting the Quran at a wedding, there is nothing in Islamic law indicating its desirability, and it would be considered an innovation if it is intended as a prescribed Islamic practice. However, there is no harm in reciting it with the intention of seeking blessings, and not considering it a religiously required act.