He's not entirely wrong about the Mac/PC discussion, but he doesn't necessarily get all the "why" correct. As far as performance, whether it be in audio production or anything else, I'll take a PC every time. Every time.
The stability thing. I can explain the reasons. He touches on part of it - Apple is a closed system. They make the hardware, they make the OS - where with Windows, a lot of companies make the hardware. That is not a reason, in and of itself.
See, Apple only has to design and test it's operating systems, software and patches to run on MAYBE 100-200 hardware variants - different components in different machines. Since they're only made by Apple and they only release a handful of different products a year, that's all they need to test it on.
Windows can run on literally BILLIONS of different hardware configurations, from the closely developed and tested major-brand premium laptops, down to the bare-metal case a mad scientist cobbles together at home from parts lying around. Seriously. I can't tell you how many times I have personally done that. That's the real marvel of Windows - it's flexibility. You can run Windows on fucking ANYTHING. But you do give up some stability for that.
The other flexibility you give up for stability is in the OS itself - on an Apple product, if you try to do something it wasn't explicitly designed to do, just to see if it would work, it won't. The OS won't let you try it. Windows, on the other hand,
PC: "Yo, dawg, that shit's crazy. You sure you want to do that?"
ME: "Yup"
PC: "Aww, fuck yeah, bro, we gonna see some shit here. Hold TIGHT!"
It is no surprise to me that in by-the-hour production studios or live settings, the Macbooks are almost exclusive. But at home, where people use their computer for EVERYTHING (including gaming, which Macs don't do), I think Windows wins out. The bits he talked about with updates have become history in the last five years, and viruses have spread to being more browser-based than PC based in a lot of ways.
The worst virus cleanup I have EVER done in my life (and that's with several decades as a professional IT technician and manager) was the browser hijacker my wife got on her Macbook Air a couple years ago. That fucker made me want to kill people.
In the end, what Radu said is 100% correct - go with what you can afford and get going. I started recording on a 4-track cassette recorder. I was chatting on IG the other day about that with Keith Douglas (guitar player from 80s hair band "Tora Tora" and actually a bigger influence on my playing that I usually mention because no one's ever heard of him) and he started out with two tape recorders and using his hands on a leather chair for drums.
RECORD WITH THE TOOLS YOU HAVE.