Registration of my washer and dryer, which are the worst appliances I have ever bought in my life.

Dear Sue,
Aha! You have found out the secret!
You are correct.
However, there are a few things you can do.
Until he passed away recently, I was best friends with an appliance parts man, who shared that the time of the "turn for the worse" was about 20 years ago.
2 things happened at that time.
1) The USA seriously began to buy everything possible overseas., and
2) Companies using computers began to use those to figure how to squeeze every last penny from the manufacturing process to make more money.
This meant making parts cheaper/ making parts to last only until the warranty was up. ( 60 days?/90 days?/one year?).
Your option?
Buy reliable old machines that will still last for 20 -- 40 years, and you will need to retain the services of an honest repair man to fix them when needed service every few years.
In the mean time, the company "Consumer's Reports" ( they publish a magazine) is what I go by to see what is still marginally good.
God bless your efforts.