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that backdoor is closed
Not really. You do have to use an Intel chip, but rumours of the demise of the hackintosh have been vastly exaggerated. Intel Mac Pros are still for sale, and Apple's most expensive computer is one of them.
Hacks based on Opencore are better (i.e. more compatible and stable) than they've ever been and an Intel hack built now will still be good for years, if not as future proof as Apple silicon.
I'm writing this from my 'Hack Pro' with a 4.1Ghz 6 core i5, 16Gb of DDR4 and a decent natively compatible graphics card and I expect it to last me a good few years still running MacOS. Although I can't say how long exactly, support was dropped for the trashcan Mac Pro about two years after it was discontinued, three years for the Power Mac G5, so I could well get longer out of it than a real Mac :P
If you're interested @ACRe19 Dortania's OpenCore install and buyer's guides are pretty much the bible these days. They very much encourage doing it properly though (understanding what you're doing so if it breaks you can fix it, not just following instructions), so I wouldn't underestimate the work involved.
I enjoyed it but it was definitely harder than previous hackintosh builds and I've been doing it for longer than I'd care to admit. If it wouldn't be any fun for you at all I wouldn't bother.
I think it relied on the Intel chip integration in iOS so now the OS is based on Apple Silicon that backdoor is closed.