db={"B":[{shortName:"B1"},{shortName:"B2"}],"settings":[{_name:"A",data:{year:2025}}],"A":[{name:"A2",shortNameInA:"B1",datesInfo:{closed:ISODate("2025-12-10")}},{name:"A3",shortNameInA:"B2",datesInfo:{report:ISODate("2025-03-10")}},{name:"A1",shortNameInA:"B1",datesInfo:{closed:ISODate("2024-12-10")}}]}

db.B.aggregate([{$lookup:{from:"A",localField:"shortName",foreignField:"shortNameInA",pipeline:[{$match:{$expr:{$or:[{$eq:[{$year:"$datesInfo.closed"},{$year:"$$NOW"/** <--- This needs to be `year` value from settings*/}]},{$eq:[{$year:"$datesInfo.report"},{$year:"$$NOW"/**<--- This needs to be `year` value from settings*/}]}]}}}],as:"_fromA"}}])