Two washes
Just had to chuckle...
When enzymes in detergents were becomming a thing in the 50s (I think) around the EU they were marketed as presoaks and prewash detergents.
First automatics jumping on the Bio train had a long bio prewash which was anywhere from a couple of minutes to hours of warm soaking/washing followed by high temp main washing.
You'd dose your normal detergent in the main wash and the enzyme stuff in the prewash.
That slowly became products being good for both, then to no longer needing prewashing.
2 more modern things that came from that school that still persist to this day:
A) Some washer programmings use "enzyme staging". Though it has become very rare now aswell, a few manufactureres do (or used to) add a stage around 104F/40C where heating is paused for a couple of minutes before they resume and heat to target temp.
B) A few manufacturers allow staged addition of bleaching agents. For example, ELux does that here with their "Stains" option: That keeps any oxy type product seperate until a certain temp is reached, only then its flushed in, dissolved for 5 min before heating then resumes.
A few more niche manufacturers actually have "bio component detergent" setting of some sort. For example, the new machine I'll be getting next week; there cou can set a programming option that once you press the prewash option, allows you to choose from either prewash, "soap detergent" or "bio detergent".
Soap detergent makes you add a water softener in the prewash and your detergent in the main wash. Then it first flushes in the water softener, and only after that has worked adds the detergent, since soaps get inactive when they hit hard water.
The "bio detergent" setting flushes in the main detergent first and adds the bleaching part later once a certain temp is reached.
The US laundry set up of course makes it way more reasonable to use that method of 2 washes to get bio activity and bleaching on one load, even if it is archaeic by our standards.
But it still is very funny to hear people doing stuff today just from sheer need that we moved past decades ago here lol...