That is the reason why some developers are “full stack”. All computers are stacked 🤪
Interesting! Do you remember where you got this chart?
You can for example have a look on the online resource below:
https://www.securemessagingapps.com/
It is very interesting with a big comparison grid between plenty of messaging solutions.
Why not using Firefox, Firefox Focus or Brave?
Have a look on Organic Maps (https://organicmaps.app) or OSMAnd for example (https://osmand.net/).