If one chats/mails with a person using Windows, despite using secure private protocols, every message will be stored by Microsoft’s Windoze Recall. Either I’m missing something but this feature seems like the most grotesque breach in online privacy/security.
What are ways to avoid this except for using obfuscated text?
You can’t, at that point you assume your correspondent is compromised. It’s not just recall but also malware and credential stealers. Doesn’t matter if recall is taking screenshots, if the messaging client itself is pwned via malware then they have full access to as much history as is available.