Depending on the model typing is much the same as any laptop.
If you are a Creative Cloud subscriber you can now run Photoshop in a browser on a Chromebook.
Current higher-end Chromebooks support Android apps, which means you can install the Android version of Calibre as well as the available Android Photoshop apps.
Intel-based Chromebook typically allow the use of Crostini to install Linux on a Chromebook. If you have the wherewithal to manage installing Linux you can install any and all Linux applications, including Audacity.
A ฿4000 ($120.00) will unlikely offer any of the functionality you desire. You will have to pony up for an Intel chipped Chromebook with sufficient RAM to do what I described above. That said, once done you'll find that Chromebook tremendously useful. Chromebooks are notably light, portable and with long battery life. They are a cinch to backup, reset and restore, and they give you immediate access to the universe of Google apps. I'm on my fourth Chromebook. The three previous I handed off to others and they're all still functioning.
If all of the above sounds daunting, consider a Windows Surface Pro. My wife has one and is entirely happy with it.