I have written the below for a trigger that I'm working on and both seem to produce the desired result.  Based on what I've learned they are two best pracitce ways to use SOQL queries.  But can someone please help me understand why I wouldn't want to just use the version with the SOQL For Loop almost all the time? (since it can help can avoid governor limits)

Version 1: SOQL List

List<OpportunityLineItem> OppProducts = new List<OpportunityLineItem>([SELECT Id, OpportunityId, PricebookEntryId, Post_Sale_Project__c FROM OpportunityLineItem WHERE OpportunityId IN: OppIds]);
		system.debug('OppProducts list size : ' + String.valueof(OppProducts.size()));
		
		for(OpportunityLineItem oli: OppProducts){
			if(psp.Opportunity__c == oli.OpportunityId){
				ResetOppProducts.put(oli.Id, new OpportunityLineItem(Id=oli.Id, OpportunityId = psp.Opportunity__c, Post_Sale_Project__c = null));
				UpdateOppProducts.put(oli.Id, new OpportunityLineItem(Id=oli.Id, OpportunityId = psp.Opportunity__c, Post_Sale_Project__c = psp.Id));
				system.debug('Post Sale Project Opportunity__c : ' + psp.Opportunity__c);
				system.debug('OpportunityLineItem OpportunityId : ' + oli.OpportunityId);
				system.debug('OpportunityLineItem Id : ' + oli.Id);
				system.debug('OpportunityLineItem ProductId : ' + oli.PricebookEntryId);
				system.debug('OpportunityLineItem Post Sales Project : ' + oli.Post_Sale_Project__c);
			}
		}

Version 2: SOQL List in For Loop

for(List<OpportunityLineItem> OppProducts: [SELECT Id, OpportunityId, PricebookEntryId, Post_Sale_Project__c FROM OpportunityLineItem WHERE OpportunityId IN: OppIds]){
			for(OpportunityLineItem oli: OppProducts){
				if(psp.Opportunity__c == oli.OpportunityId){
					ResetOppProducts.put(oli.Id, new OpportunityLineItem(Id=oli.Id, OpportunityId = psp.Opportunity__c, Post_Sale_Project__c = null));
					UpdateOppProducts.put(oli.Id, new OpportunityLineItem(Id=oli.Id, OpportunityId = psp.Opportunity__c, Post_Sale_Project__c = psp.Id));
				}
			}
		}

Thanks in advance for your help!