Wayland has it’s fair share of problems that haven’t been solved yet, but most of those points are nonsense.
If that person lived a little over a hundred years ago and wrote a rant about cars vs horses instead, it’d go something like this:
Think twice before abandoning Horses. Cars break everything!
Cars break if you stuff hay in the fuel tank!
Cars are incompatible with horse shoes!
You can’t shove your dick in a car’s mouth!
The rant you’re linking makes about as much sense.
Dualbooting is possible and easy: just gotta shrink the Windows partition and install Linux next to it. Make sure to not format the whole thing by mistake, though. A lot of Linux installers want to format the disk by default, so you have to pick manual mode and make sure to shrink (not delete and re-create!) the windows partition.
As for its usefulness, however… Switching the OS is incredibly annoying. Every time you want to do that you have to shut down the system completely and boot it back up. That means you have to stop everything you’re doing, save all the progress, and then try to get back to speed 2 minutes later. After a while the constant rebooting gets really old.
Furthermore, Linux a completely different system that shares only some surface level things with Windows. Switching to it basically means re-learning how to use a computer almost from scratch, which is, also, incredibly frustrating.
The two things combined very quickly turn into a temptation to just keep using the more familiar system. (Been there, done that.)
I think I’ll have to agree with people who propose Virtual Machines as a solution.
Running Linux in a VM on Windows would let you play around with it, tinker a little and see what software is and isn’t available on it. From there you’ll be able to decide if you’re even willing to dedicate more time and effort to learning it.
If you decide to continue, you can dual boot Windows and Linux. But not to be able to switch between the two, but to be able to back out of the experiment.
Instead, the roles of the OSes could be reversed: a second copy of Windows could be install in a VM, which, in turn, would run on Linux.
That way, you’d still have a way to run some more picky Windows software (that is, software that refuses to work in Wine) without actually booting into Windows.
This approach would maximize exposure to Linux, while still allowing to back out of the experiment at any moment.