I'll start this with some examples.
I bought a Windows 11 Dell Inspiron that originally shipped with Windows 10, all reviews said I can expect solid battery life, I even checked with the seller to get me the battery diagnostics from cmd, to make sure it hasn't regraded much, I reran them myself on purchase – all was well. And yet, I usually got 2 to 3 hours of battery life from it, barely half of what was to be reasonably expected. I tried diagnosing it and doing all the steps, but still, barely 3 hours.
I bought a Fire TV Stick from Amazon, tested it with my grandma's TV and it worked fine, shipped it home and even though all is factory reset, the remote doesn't pair. To be more precise, the remote does pair, I can pair it as a HID device to any BT device, and I can read the raw data off unpaired connected Fire TV stick via BLE, but they just don't pair. I've done all the tricks, different everything, doesn't work.
My uncle has a Fire TV Stick too and his remote works except it doesn't turn the TV on, CEC is odd technology, okay, but funnily enough the only way to turn it on then is via Alexa? Which means CEC is okay? But with a catch, it only works half the time, the other half Alexa just lights down and doesn't do anything.
Not to mention Spotify constantly glitching when streaming to speakers, Google Photos randomly rejecting some video filetypes when uploaded from some device, my Mi Band randomly rebooting in the middle of the night, and much more.
I miss the times when I could just turn on my TV and it would play something, I miss the times when I would open up my MP3 player and it would reliably play music in my wired headphones. Now I feel like we have all the features but none of the reliability. Every TV is 'smart' but I use it much less than the dumb ones I used to have. What a world.
I know programming is hard, and when I was so frustrated with the state of so many health tracker apps, all cloud connected and randomly failing, I just wrote my own...and I was honestly shocked when it just. plain. worked. no strings attached.
Is this just me?