Strange intersection, but can you give examples?

There is! RCS (wikipedia.org/wiki/Rich_Communication_Services)

Android supports it, but unfortunately it seems Apple would prefer everyone stick to imessage. Marques Brownlee talks about this in his "Blue Bubbles vs Green Bubbles" video.

For figuring out which features a user wants, my old company tried this and had a lot of success. The product was aimed at small businesses and it was a dashboard to help them manage Yelp, Google, Tripadvisor, Foursquare, etc. listings all in one place. So we figured they would want to update their info like phone number or hours, so that should be one tab, and replying to reviews was another big thing so that was another tab. Those were set in stone. But we weren't sure if they wanted a tab for promotions (create a campaign and post it on Google, Yelp, Facebook, Twitter, etc., and customers could redeem with a QR code and there would be analytics), competition (pick N competitors and track their ratings, reviews, etc side by side with yours), social media (see mentions of your business across social platforms and see sentiment analysis over time), or learning (a series of online videos that you could watch, tailored to your business based on different metrics).

So we built out the first two tabs (profile and reviews) but we had dummy tabs for promotions, competition, social media, and learning. Clicking those would popup a form where we would let them ask to be notified when the feature was available, with a freeform text field where they could explain why they wanted or didn't want the feature, or what they expected it to be. It turns out that competition by several orders of magnitude was the most requested feature, and promotions was a non-starter (only a fraction of a percent of users ever clicked on it).

Now that seems impossible... They force-feed me integrations I don't need or use...

Well, good thing I've started migrating to Thunderbird some time ago... I still need to use the GMail interface for mailing lists -- for some reason Thunderbird in 2022 still doesn't properly understand the concept of emails with multiple labels and threads across labels...

Hopefully, at least GMail has solved their editor in this new version? Because even if I use plain-text in GMail, copy-paste never seems to work right, and just editing text seems to make the cursor jump randomly within the textbox... (I've already started editing the email body in a plain-text editor, and then just copy-paste it at the end in GMail...)

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BTW, yes, I am a paying customer, so I have the right to complain, but unfortunately there isn't an official "complaints box". Even if I weren't a paying customer, I would still have the right to complain, because they get their share by harvesting my emails...

Use a U2F or WebAuthn hardware key + backup codes printed somewhere on actual paper.