While I agree with many of your views and feel for your struggles, I've actually used all currently available OS's at some point and currently am quite happy living on Win 10. In fact, Win 10 is what got me off MacOS and back to Windows. Mac under Tim Cook IMO has been getting progressively worse with each new revision. Linux is fine, but there are some things I cannot find software for in Linux that I have in Windows, mostly in media creation/copying/duplication. I've yet to find any DVD or Blu-Ray rippers or duplicators which support all the new current disk
Codecs encryption formats, esp Disney disks. To date, only WinX DVD and MacX DVD software can support what I'm doing. If it weren't for that, then I might likely be on Mint.
Also, at least for me, I've yet to find office software that can meet my needs regarding simplicity of document formatting and compatibility with work documents like MSOffice Home & Student (no, I refuse to pay subscriptions for any software). LibreOffice, though workable, always comes up short for me and leaves me feeling wanting and frustrated.
Last from me on this thread tonight, don't discount Win 10 security, it ranks up with the others and among the best. All OS's have their vulnerabilities, and my strong belief these days is the only reason Linux and Mac (BSD) are perceived as "less vulnerable" is simply due to the smaller user base. Win 10 is worlds better on security than older Win versions and it's unfair to use WinXP as a reference for Win 10 security.
I hate going back to Windows. Sleep? It 's crap compared to OS X (lift lid up on Macbook Pro, and instantly, I have where I left off showing). Windows 10? Login screen and it is laggy as hell...why Windows why?
I agree that OS X (MacOS if you must call it that) is getting worse under Tim Cook. Apple products across the board have been in strong decline from a quality point of view since Steve Jobs passed imho. My iPhone 6 is garbage (I hate the phone that much I want to seriously throw it).
You can't blame Linux for having issues with proprietary standards. Proprietary standards are BAD, always have been. Most commercial software vendors are afraid of Linux and this shows in their lack of support for it. Great for the company in question, terrible for the consumer.
The smaller userbase argument has been around for a long time, and it's simply just not true. Microsoft Windows was never, from day 1, designed with security in mind. NEVER. Whilst I would agree that Win 10 security is better than its predecessors, it's still weak compared to any Linux kernel based system (let alone something like openBSD). Security by obscurity has never been a good way to develop software. Security flaw on Linux? There's usually a same day fix...try that on Windows or any other commercial software where the flaw is typically hidden by the vendor to save face, and they fumble to apply a fix in anything resembling timeliness.
Already after 2-3 weeks of usage of Windows 10 on my 2nd hand Lenovo t430 that I purchased off Ebay, it has shown the typical Microsoft Windows "slowdown". I said this to a mate a few days ago and he laughed and agreed (he also works in IT).
I do admit that I have an open hatred of Microsoft (how is office not a monopoly and in breach of anti-trust laws?). Remember ODF? Yeah, Microsoft politically interfered with that One, yet the US DOJ did nothing...I guess when you have billions, you can afford to bribe US senators to do your will...