use case: i wish to assign 2 different page layouts on a custom object to 2 useres with same profile type.

When a new record is created on custom object and ownership is to a user A, another user B of same profile type is given read/write access to the record via apex sharing rule via a trigger, as this object is private.

Along with that i wish to add a seperate page layout to the user B so that both can have seperarte views for same record bases on there area of function.

code i using for sharing access

trigger MobjectSharingrule on Mobject__c (after insert) {

    if(trigger.isInsert){
     
    List<Mobject__Share> MobjectShares  = new List<Mobject__Share>();

    for(Mobject__c Mobject : trigger.new){

        Mobject__Share MobjectBUserShare = new Mobject__Share();
            
        MobjectBUserShare.ParentId = Mobject.Id;
            
        MobjectBUserShare.UserOrGroupId = Mobject.Mobject_Property_BUser__c;
            
        MobjectBUserShare.AccessLevel = 'edit';
            
        MobjectBUserShare.RowCause = Schema.Mobject__Share.RowCause.Suggested_Property_BUser__c;
            
        MobjectShares.add(MobjectBUserShare);
    }
        
    Database.SaveResult[] MobjectShareInsertResult = Database.insert(MobjectShares,false);
        
    }
}

 1. is it possible?

2. do i have to assign the record type B to userB (with page layout B )

thank you