Those complaints are irrelevant because you can downgrade Android versions. Android Lollipop was running like crap on my Nexus 7. Battery life halved and stutters in the widget screen increased. It would give iOS 11 a run for its money. I downgraded back to KitKat and everything became fine.
On the other hand you have iOS 11. 2 day old news
https://9to5mac.com/2018/07/08/ios-11-4-battery-drain-iphone/
"My iPhone 6 was working perfectly fine until I updated to iOS 11.4 and ever since I did that my battery is draining rapidly even without me using it at all. I used to go a full day without charging it now it may last half a day.
I am just wondering if something got turned on with this new update that I have to turn off to save battery life. It is just weird I have not done anything other than update the iOS and now this happening."
"When I look at my battery performance, it shows that the personal hotspot on my phone is being used, though I have never turned it on. I have to keep charging my iPhone every 2-3 hours now."
"My iPhone 6s has the same issue after updated to iOS 11.4. I charged it up to 100%, rebooted it then let it stand by for 4 hours, the battery indicator dropped to 40%. It has been 3 days since I updated to iOS 11.4 and this issue happened every day."
We have a 33 page discussion on Apple's support forums which has got to be embarrassing for one of the final versions of iOS 11. A close review of this thread shows almost everyone affected by the issue has an iPhone 7 or lower. Coincidence? I don't think so. Whats worse is that unlike those Android tweets you posted, these users have no way to downgrade back to a stable version
"Just got off the phone with a senior advisor. Absolutely no help. He told me it was the battery and I need to replace it.
I had an advisor check out my phone and he determined it was not the battery. I have reset my phone to a new phone. The same issue. I asked this senior advisor to check out this support group and he wouldn't. I also asked him to check with the engineers to find out when they were going to come up with a fix and he told me, all I had to do was change that battery and if I wouldn't do that or reset my phone to a new phone then he couldn't help me. I guess it's time for a new brand of phone. Sick of paying outrages prices for something that doesn't work."
Well DUH iOS 12 made his phone much better because iOS 11 literally brought my iPhone 6 to a grinding halt. There was no way to go but up.
iOS auto downloads the update in the background after a few weeks unless your phone is completely out of storage and when you are least expecting it, that dialog of iOS update installation in 10 seconds pops up and if you weren't paying attention and tap "Install" its curtains. I had to download a tvOS beta profile to force the device to stop auto downloading it on WiFi. If Apple wasn't forcing users to update, why is the beta profile even needed?
Apple Support refuses to provide any support if they find out you are on an older iOS version. The latest apps like GRID are not compatible with iOS 10. There isn't even a RED warning sign in the release notes that performance may vary on updating.
Yes I have Nexus 5 from 2013 which is absolutely comparable to my iPhone 6. Not only is it comparable it runs faster outside the world of benchmarks. It runs an outdated Android version but is lightning fast, lasts decent for a worne out battery and still gets access to all the latest apps from Google which would have needed a system update on iOS.
You see, you keep moaning about vulnerabilities which mean jack squat to me if the device performance is compromised. I have been running on outdated iOS 10 with vulnerabilities for over a year. Have yet to be infected. I am running Android Marshmallow on the Nexus 5. Have yet to be infected. I am running a several year old Windows installation and am yet to be infected.
OTOH whats more noticeable is the blazing fast performance and 1 week battery life which is simply impossible to get on iOS 11. I think the tradeoff for security vs performance is not worth it in my experience.
Its like the PC games from 2018 nowadays. Ultra vs High graphics settings, you barely see a difference, whats more noticeable is the FPS counter which halves. Lower settings make sense.