Having trouble understanding why my code is giving me the error below.  I have a feeling it's obvious, but I'm baffled nonetheless.  Trying to use getsobjectype in my if statement to verify that the lead owner is a user (i.e. to exclude queues).

Save error: Comparison arguments must be compatible types: SOBJECT:Lead, Id

Trouble line of code:

if(l.Lead_Stage__c.contains('Engaged') && l.Status.contains('Team Contribution') && userMap.get(l.OwnerId).Profile.Name.contains('LDR')
&& l.OwnerId.getSobjectType()==user.sObjectType && oldMap.get(l.OwnerId) == LDRmanagerQueue.Id)

Rest of that section of code:

public static void updateLDRlead(List<Lead> newList, Map<Id,Lead> oldMap){
		
		List<Lead> leadsToBeProcess = new List<Lead>();
		
		for(Lead l: newList){
			
			Lead oldL = oldMap.get(l.Id);
			leadOwnerIds.add(l.ownerId);
			leadOwnerIds.add(oldL.ownerId);
			
			if(l.Meets_LDR_Process_Criteria__c == true && l.Remove_from_LDR_Program__c == false){
				//Add to list of leads currently in the LDR Program
				leadsToBeProcess.add(l);
				
				//Set Record Type
				l.RecordTypeId = LDRrecord.Id;
				
				//Set Status to Nurture when entering the program
				if(oldL.Meets_LDR_Process_Criteria__c == false && l.Meets_LDR_Process_Criteria__c == true){
					l.Status = 'Nurture';
				}
				
				//Default Inquiry/Nuture to Lead Development Queue
				if(l.Lead_Stage__c == 'Inquiry' && l.Status == 'Nurture'){
					l.OwnerId = LDRmanagerQueue.Id;
				}
				
				//Stage is Engaged, Status is Team Contribution, and Owner changes LDR Manager Queue --> LDR
				if(l.Lead_Stage__c.contains('Engaged') && l.Status.contains('Team Contribution') && userMap.get(l.OwnerId).Profile.Name.contains('LDR') 
				&& l.OwnerId.getSobjectType()==user.sObjectType && oldMap.get(l.OwnerId) == LDRmanagerQueue.Id){
				}
				
			}
		}
	}

Thanks in advance for any assistance!