I saw the video by noBoilerplate. How useful is knowing and using Vim-Shortcuts when writing a letter or an email? Does it only make sense to learn it if you write or code all day or is it useful enough for moderate tech users or office workers?

Probably because you use a lot of proprietary platforms like discord, reddit, github, twitter and you have apparently very bad opsec. If someone would do something illegal, they wouldnt be so careless about it. Thats the assumption probabyl

Yes, the search is great for starting out! But i think you need to add the python-search plugins first, right? Not that its hard to do but it is something that needs to be done first