[Xiaomi Poco X2 Guides, News, & Discussion] reza6d:
1. Developer mode unlock method is same as AOSP in miui, nothing different there.I think you somehow remember enabling usb debugging option which has 3,4 seconds of 3 popup screens to enable and i find it useful because so many people in android community just edit the stuff they shouldnt even play with, resulting in having problems, they just tell the problems and list what could happen in that 3 popup screens.

2. Initial unlock thing have some sense in it, let me explain.I am living in turkey and xiaomi as official seller just start selling here since like 2 years ago, before that there was no official seller.(still we prefer resellers because of price difference) So what happended ? We had to buy from random people who import phones from china directly, which buy them from another random sellers in china.and guess what in this process they used to add random modified miui versions(not talking about miui eu) which resulted in security issues, hijacking bank accounts etc or not getting any updates at all ! so by adding this waiting time they force the first seller to keep 2 weeks minimum to unlock it to add custom rom, which they dont, resulted in mostly unmodified devices and guess what most user base of xiaomi are not developers or ROM swappers, there are people who just buy the damn device to use it which dont even know what bootloader is.They prefer a secure,unmodified device which gets updates on time.This waiting time served its purpose.Yeah i can agree its implementation method should be better,like same wait time for all devices not random but thats another discussion.

3. Locked EDL mode,yes you are right.I used oneplus devices before and they are better in developer friendly manners, but this doesnt mean xiaomi is not.in comparison to other android brands, in my opinion first company is oneplus then xiaomi.

4. See there is the problem here, dont get me wrong but if you did know what you are doing or messing with after using 4 xiaomi devices you would and should be able to uncheck the right down cleand all box on miflash tool and becareful when using it.If as a flashy user after 4 device you still can accidently lock the bootloader, you shouldnt be messing with device,the waiting time will be a lesson for you to learn more and never do the same mistake again and be careful next time.

I can understand that waiting is a little boring etc, but keep in mind in a community where huawei after that many years locked bootloader of their devices permanantly(except unofficial ways) you cant open bootloader,or samsung disabling knox and etc, you should praise a brand when it serves you good devices with less price with ability to use custom roms,camera2api etc.

By the way in comparison to oneplus,xiaomi is much bigger company and community of users in oneplus are mostly android geeks who knew what cyanogenmod was,there are even people who didnt hear oneplus name even once in their life, but xiaomi is more general purpose brand who is way more popular among normal smartphone users, so they serve 2 different community in my opinion,with less users base in common in general.

Feel free to swap to any other brand if you are this much unhappy :)