Proprietary hardware

It's awkwardly tall.

OH, least favorite.

I was wondering why everyone is so sarcastic.

Well, buggy software (MIUI) and the surveillance. I mean, there's a higher chance MIUI bricks itself during an update than with any Alpha-release custom ROM (so I don't update... [But it's also due to Android often removing features from API and breaking niche apps]).
E.g.: Wallpaper bug (stretched or awfully upscaled after changing brightness), brightness slider not working, broken screen rotation, battery drain, swapped L/R microphone audio channels, FM radio cutting out, system crashes and waves of killed apps, camera app in landscape has some buttons off-screen, MIUI screenshot tool occasionally breaks and stock screenshot tool is used (with full-blast audio sound effect no matter current volume settings), notification access service needs to be manually reset for each app after the app is restarted, 120Hz gets laggy after toggling battery saver on and off and needs to be manually reset, dark mode is forced on all apps but the setting to change this sorts all apps in random order,... Also, the Poco X3 Pro motherboard has a tendency to die. I am on this phone's third motherboard currently.

Also... the volume buttons can get stuck. Xiaomi phones have issues with dust particles making their way into buttons and activating them randomly.

Still looking for a keyboard that only suggests actual words

It feels like the os I have wasn't designed for my phone. Buttons aren't scaled properly, system apps ask me for consent over "privacy concerns", no easy control over simple features like wallpaper, sluggish/buggy animations. I have a Redmi

Difficult to type on the outer screen because the keyboard is too squished horizontally (Galaxy Z fold 4)

It's not compatible with LinaegeOS or any FOSS operating system, i checked.

A while back i would have complained that the fingerprint scanner was crap, but i actually got that working properly by entering the same fingerprint three times

That it isn't a librem 5 or one of those tinfoil hat phones

I have a Pixel 6a with GrapheneOS. I would in change a thing. Best combo I've ever had.

How difficult it is to remove Google's bloatware.

No headphone jack, and having to deal with Samsung's bullshit. This will be my last phone from them.

Battery life is a little short, and the software support ends in about a year. Really wish I could keep this phone going for another 3 or 4.

Making me feel like a freak for asking for the freaking sudo.

If you can't do any software change you want, you are not the owner of the device.

That its producer has gone bancrupt they have absolutely lived the enshittyfication while doing the settings in their custom Android and I am currently on the last supported android version (12) which will probably go unsupported soon-ish and the company I got the phone from has sold so few that the definitely better alternatives (Lineage, etc) don't have any reports of people who have done it with my device or even a tutorial. And reading into flashing it on an unsupported device is a rabbithole I currently don't want to spend time with. And if I fuck up I can't even write the company to fix it for me or smth like that...

Too large! Came with bloatware. No other complaints though, I only use my phone for a few things.

Samsung S22 Ultra. Probably battery life, specifically that 15% means "you have 5 minutes left". And how long it takes to open the camera app and take a photo.

OS is okay, performance outside of the camera issue is okay, size, camera quality, screen, s-pen... I could have changed it this year and chose to skip. I might change it next year or even try to make it to 2026. New battery might be needed for that.