I'm a massive fan of the Redux pattern. One thing, though, it adds extra boilerplate code and may look overwhelming at first. But you get used to it and start to appreciate the power of it once your application grows to be a giant where state management becomes a nightmare.
Bootstrap is all good and graceful, but let's go for different cuisine. MudBlazor is an open-source library that you want to look at if you are into Material Design. The community is welcoming, and they are pushing new updates every once in a while.
What formatters do is format your response and request in your preferred data formats. For example, JSON formatters; if used, would format your request and response body in JSON. Learn how to build a custom Yaml formatted in .NET
There are a bunch of "dotnet" templates readily available for use. That's all fine and dandy! But what about creating your templates? Learn how easy it is to ship your runnable projects as templates for your team.
To make a Relay compliant GraphQL server, you have to follow some specifications. Fortunately, GraphQL-Dotnet community has provided a library to take on the heavy burden.
Angular pipes are great for data transformation. json, async, datetime are some of the largely used built-in pipes. Learn how to make a custom one for your need.
Creating custom elements in Angular and exporting them as web components is real simple. See how I made a custom subscription element in Angular and used it as native HTML element.
In Angular, you can upload a file and at the same time get the progress by enabling the reportProgress flag on HttpRequest object. Source code available in Github.