Earlier quoted context omitted.
> I've done my research. Whatsapp has encrypted chats by default, Telegram doesn't. Telegram has encrypted chats by default, just not E2E-encrypted.
What does it mean that they're encrypted, but not E2E? That means the chats are MITM'd by the company, no? If you're talking about HTTPS, that's an incredibly low bar.
Warning: the above is just my very simplified explanation of my understanding of what I read a while ago.
Edit: again, this is based on something I read a while ago, but I think Gmail has or had a similar system where you have to have access to two different places in the system to get hold of the messages, so yes, Google can get hold of anyones messages bjt it is not like anyone can do a select * from messages where accountid = 12345. (And this is not how I think they store the mails anyway :-)