[{"InviteId":1,"InviteStatus":1,"PartnerCompany":"Monstra","MeetingDate":"2021-09-05T15:00:00.000+0000","MeetingStartTime":"12:55"},{"InviteId":2,"InviteStatus":0,"PartnerCompany":"Empresa Teste","MeetingDate":"2021-09-05T15:00:00.000+0000","MeetingStartTime":"12:55"},{"InviteId":3,"InviteStatus":0,"PartnerCompany":"Monstra","MeetingDate":"2021-09-07T15:00:00.000+0000","MeetingStartTime":"12:55"},{"InviteId":4,"InviteStatus":0,"PartnerCompany":"Empresa Teste","MeetingDate":"2021-09-07T15:00:00.000+0000","MeetingStartTime":"12:55"},{"InviteId":5,"InviteStatus":0,"PartnerCompany":"Monstra","MeetingDate":"2021-09-06T15:00:00.000+0000","MeetingStartTime":"12:55"},{"InviteId":6,"InviteStatus":0,"PartnerCompany":"Empresa Teste","MeetingDate":"2021-09-06T15:00:00.000+0000","MeetingStartTime":"12:55"}]

db.collection.aggregate([{"$group":{"_id":"$PartnerCompany","max":{"$max":"$InviteStatus"},"docs":{"$push":"$$ROOT"}}},{"$set":{"docs":{"$cond":[{"$eq":["$max",1]},[{"$arrayElemAt":["$docs",0]}],"$docs"]}}},{"$unwind":{"path":"$docs"}},{"$replaceRoot":{"newRoot":"$docs"}}])