Some Windows servers use the Windows Server Core edition and you can manage it only via terminal if you choose to. In those cases, a command line text editor is useful. I'd say it's not super common from my experience. More often I see people using RDP or SMB file shares for file editing.
NHibernate is quite popular alternative to EF and I've seen it used on many projects, especially big apps. Some smaller apps also choose Dapper (by StackExchange) and avoid EF.
Regarding ASP.NET, you're right. There are some alternatives, but not used very often from my experience.
In my opinion, you can go a bit more low level in C# and have control over allocations, data copying, threads, etc. Also, .NET is a bit more general purpose than Node. If the workload is more about computation (CPU/GPU intensive stuff) or has some unusual technical requirements (uncommon protocols, interop, etc.), you can really benefit from being lower level and more generic.
But all this is very project specific... it's hard to make these sort of claims about performance.
People who practice playing musical instruments eventually learn something similar. You shouldn't really push hard, you need to be relaxed and then the speed will come. Plus it's also lot more enjoyable.
I think it's a similar pattern, but at a different layer.
You can compose methods, compose classes/instances (DI), compose libraries/assemblies, compose processes, microservices, or entire apps and multi-app systems. There are similar patterns of composition, just each is at a different level of abstraction of the whole thing.
Sometimes it makes more sense to compose it inside an app, sometimes it makes more sense to design it differently and compose on another layer. Sometimes it can be both or it's blurry and not clear...
The font hinting there looks quite ugly when viewing this on Windows. The font has some very sharp and thick edges, it's not very smooth and comfortable to read. It's probably much better on macOS or somewhere HiDPI.
When I add `* { font-family: georgia!important }` and scale the page down to 75 %, then it's quite comfortable to read.
How does it work in the UK? Many areas I visited in the UK have very uniform looking houses (all brick walls, nothing really sticking out, very pleasing to the eye). I assume there must be some strict rules to follow...