On Matrix, as long as you have your username and password, it’s not possible to get “locked out” due to not having your keys. In fact, your keys are only necessary if you plan to participate in encrypted chats, in which case it’s obvious that losing your key will mean losing access to old messages. However, you will still be able to receive new messages by generating a new key.

According to people familiar with Microsoft’s plans

Might as well get your information from psychedelic mushrooms.

I use MediaMTX. You can stream to it with whatever (I use OBS). You could even publish it to a website behind an iframe.

Well, you obviously have never used BitLocker. The first thing they ask you when you activate BitLocker is to pick one of 3 options:

1. Link to Microsoft Account.

2. Save to a File

3. Print Recovery Key (so you can write it down on a piece of paper or whatever)

There’s no “railroading”. There’s plenty of real things to not like Microsoft. No need to make them up.

Microsoft only has your key if you give it to them for convenience (by syncing to your Microsoft account), and they’re required by law to give anything stored in their servers if asked. There’s no conspiracy here.