Manchester is the one airport that I will flat out avoid. It's up their with some of the worst US airports, and unlike those airports, has alternatives in reasonable distances.
You can even see by the passive aggressive (and consistent device) signs in security "All electronic devices must be taken out. Small electronic devices are excluded. Failure may result in delays of up to 2 hours" that it's an institutional problem. iirc they had some distinction where being battery powered meant it was a small electronic device, unless it was an iPad.
Add to that usual airport inconsistencies like "do I need to remove an 8inch tablet?" from my bag. A 10 inch tablet is pretty universally required to be removed, but I've been instructed both to return my 8 inch tablet to my bag or to remove it from my bag and sneered at for getting it wrong, sometimes at the same airport.
Or let's talk shoes + TSA in the US: Some airports require them through the scanner, others will look at you like your crazy. This will often not be reflected in local signage.
But then threatening a 2 hour delay for not reading their mind is just dumb.
In my final visit to Manchester airport, apparently an 8inch tablet does count as a small electronic device but a PS4 controller does not. Therefore I was supposed to conclude from the passive aggressive sign that the tablet must be in my bag and the PS4 controller must not be in my bag.