The following story may not fit here. If so, admins should move it in an appropriate section or removed completely if is judged useless.
In my case I've started this Pixel Experience journey with a device that won't charge anymore also with mobile signal always weak since the beginning, still in warranty but not interested to ship it in Northern Europe for that. Googling for possible solutions, first I've found some youtubes about opening the phone which I didn't do as years ago I ended with a cracked screen on a Samsung 4.... I decided instead to close my eyes while applying a strong pressure on screen, in that point seen in videos where the charging port connects to the motherboard... I heard a "click"! and wasn't the screen

the phone started charging also no more signal issues!!
So, now I have a spare phone, perfectly looking and working but a bit outdated with his Android 8. I've found Sony's page for unlocking the bootloader with their statement about theirs contribution for the Android community

and then this particular community

At one moment I thought I bricked the phone definitely so I've flashed a stock ROM. I saw then a counter showing how many times I flashed this phone, was already some 28 times at that moment only

... Not necessarily because I was pleased doing so but maybe because I didn't took my time to fully read and understand what I was about to do. When a lot of people were happy here and me not, I've realized I had a RTFM problem
Today I'm as happy as possible still using this phone. I'm not thinking buying a new one soon as this one is doing well everything I'm asking to do for me (except cooking

).
Thinking about how many of us decide to reuse "obsolete" devices and not trashing them and buying new ones every year or two... Sony is doing a great job for the environment by making devices that can be used for many years and officially allowing bootloader unlock. But it wouldn't be enough without people investing their time and money to develop these custom ROMs! And without everyone of you, deciding not to walk the easy way (trash old phone and buy a new one) but instead to invest your time to read, try, posting about issues and keep running an old phone! Thanks to everyone!!