The goal of VR is not to take every single one of these things and to put them into VR, to completely VR-ify them, but instead to provide an eventually better multi-tasking computing interface than a PC allows.

All of those things, you'd do normally, but instead of physical monitors, it would be with virtual monitors. Where you can have 3 or 5 monitors set up how you want in any angle/position without taking up physical space (I can only fit one on my desk), and have different configurations for different needs to instantly switch between. Like one for work, one for media (just one giant IMAX screen), one for casual browsing etc.

Some things may be VR-ified like Amazon shopping, but only as a hybrid experience. Start out with a 2D virtual screen experience like normal, but have the ability to pull out items in 3D to see them in full scale, to try on clothes etc.

Full VR-centric experiences will need to provide a reason to switch the interface entirely into VR. With maturity of the tech, this would satisfy the needs of working from home, online schooling, and all forms of entertainment and many forms of recreation that we don't really think of as entertainment (like socializing, travel, exercise, and health).