"That smell" is chemical fragrance, and a lot of detergents are now fragrance free and dye free. And there's one additive that is banned in many areas because of its effect on the environment/water table. I think it's phosphate but check me on that. So the smell you are missing could have been eliminated for a distinct reason.
Also, is yours a front loader? There are a lot of problems with mold and odors with those washers - check Consumer Reports for objective reporting. It's possible that you have a problem that is counteracting what you're doing. You have to leave the door open a lot to get rid of the problem, and sometimes that's not enough. Depending on how hard or soft your water is, you may smell changes as well.
I was clueless in the grocery store and bought the wrong detergent when I saw the sale and coupon deal. I got regular Arm & Hammer in the yellow bottle instead of one of various companies' fragrance-free version. You can smell it in the next room when someone's doing laundry, and my husband has now developed a rash from it. If that's the smell you want and if no one reacts to it, you could try that!
I add baking soda now and then to a full washer (no clothes, just water) and I add white vinegar to the rinse sometimes. Both help get rid of odors and some of the scum. But don't use them together! That's the secret to those science fair volcano projects. Do a regular wash in between.
If there's nothing wrong with your washer, then I think you might consider changing your definition of what "clean" smells like. There's a big commercial now about how chlorine bleach is the key to the "clean" smell - and that's because chlorine bleach sales have dropped off precipitously. I think more and more people are rebelling against the chemical additives, and many are drying their laundry in the sun in good weather. Maybe that's why you're not smelling an odor you associate with long ago?