While I understand the utility of a USB installer, it should be mentioned that macOS Internet recovery has been around since Lion. You can choose to install latest ...

Your Mac needs sufficient free storage and a fast internet connection to install updates. If you still face issues, install ...

You need to download the macOS file from Apple Store. You need to download the macOS BugSur file from the Store, since it is a large file, you need a good enough ...

PSA: for MOST use cases there is now a much easier solution. If your primary goal is just to download updates faster/not use up your limited data budget, and you have multiple Macs (otherwise why do ...