I feel like Linux proselytizers are always talking about how Linux will revive or improve low-powered hardware, and that’s one of the reasons it’s so great. Then when it’s still a poor experience, the same Linux users say things like this, that no software can save bad hardware. You can’t have your cake and eat it too.
Also, Linux expressly aims to run on a wide array of hardware, and macOS doesn’t. So Linux should be judged across a large range of hardware and macOS shouldn’t, in the same way a Jeep should be judged on its off-roading abilities and a Civic shouldn’t.