Oh, I hadn’t heard of that. Of course that makes perfect sense though.

I can really depend on how the hose can be situated. Oftentimes the hose runs into a cabinet next to it and into the sink drain. Frequently just adjusting that under the sink is enough.

Also the hoses are intentionally too long so you can attach the hose before putting the washer under the cabinet. Making sure to take up the slack is the important part

But sometimes yeah you can’t and just have to replace the hose every once and a while. If you use the washer frequently enough, like at least once a week it should be fine for years

Oh oh, finally something I can comment on!

I’ve replaced a number of dishwashers and in every case like this the drain hose, under the dishwasher, had a low spot where water then mold collected.

It’s usually pretty easy to check. Most dishwashers are secured with a couple of screws to the counter top or sides. Once those are removed it should be easy to slide it out. Probably best to look up a YT video on it. But if that’s the problem the drain hose is a dime a dozen, don’t try and clean it. You’ll know if it’s the source of the smell pretty quickly.