First thing I do when I get a smart appliance is scan it with nmap. This has revealed some interesting Easter eggs, like my Davis instruments air quality sensors having a local REST API.
Doing the usual scan against my GE washer and dryer shows that port 53 is listening. What could that be for? Is there a way I can at least query their status locally or something?
When I got the washer and dryer I was excited about the smart home features because getting an alert when my laundry is done or starting the washer remotely so the clothes are done when I get home are genuinely useful features. However, last time I checked the app none of that was available, so I just have these Trojan horses in my home spying on me with no benefit in exchange. Their app wanted my freaking mailing address when I signed up for their mandatory account, so the features mentioned above are the least they could offer in exchange for my digital soul. But I digress.
My fridge is in a similar situation. It commits the additional cardinal sin of ONLY being controllable via the app, with no on-board temp or filter status indicators whatsoever.
Hey, it might help to get email aliases. Mailbox and fastmail offer them - I think most paid email services do. It helps me keep the services I have to sign up for isolated from my main email.
Already do that via a custom domain and SimpleLogin/Proton.
Firefox has Firefox Relay, which lets you create aliases (they call them masks) for one destination email for free
https://relay.firefox.com/
Apple also offer a similar service, if you so happen to own an iPhone.
Has been really useful for identifying which vendors and websites on-sold my data!