Deathsauce

Corporations will literally do anything except act remotely ethically towards consumers.

I personally don't see the "Eureka!" moment that big tech apparently does in moving EVERYTHING to the cloud when they struggle to design safe and reliable services as is. The whole cloud stuff just kind of says "sure it will be a privacy nightmare rife for exploitation from bad actors, but THINK of the money we could earn from it in the long run!"

Yup. Obsidian is a 'second brain' system development-like app and there's lots to it. It supports markdown, has a canvas where you can lay out and interconnect ideas and stuff. It's very customisable, it's just not open source. Libre Office, on the other hand, is a free and open source Microsoft 365/Office alternative.

Obsidian, Telegram and LibreOffice.