I have both a Speed Queen clothes washer and clothes dryer. Came from Hahn's. Both have a heavy duty warranty; 10 yrs on the gas dryer and something like that on the washer. Simple, very well built machines. Only 1 issue with the washer which required a trip out by the SQ repairman. Took him 10 minutes to install the part he brought with him. When my current dishwasher goes to the big dishwasher place in the sky I'll likely be buying a Speed Queen.
Both Lowe's and Home Depot carry name brands BUT often the models offered are special, made only for them. This includes their lawn mowers. Do your research before you buy any product from any vendor.
Not seeing dishwashers on their site. You are correct about a lot of products being special, but 98% of the time, they just change the model number, typically a digit or letter off, and nothing else. That way vendors cant be forced to price match. Too much work retooling, having different parts, chips, etc, especially with todays supply chain issues. I have a 150 MY22 Ford Exploders sitting in front of my office waiting on rear AC controls/chips and have been for months. I'll likely take delivery of the 130 MY23's before those chips come in.