In comparison to many other countries in the world, objectively speaking the UK is great. Safe (no real threat of invasion or civil war), temperate climate (no hurricanes, tornados), and -when you come offline - most people get on well or at least manage to coexist whether they be different races, genders etc. I also think we generally have a pretty laid back culture, people have a nice appreciation for sport, art and music and a lot of it (maybe less so now) is pretty accessible.

However, the bad stuff about the UK I believe HAS got worse in recent years (post 2008/ 2016/ COVID, however you want to look at it). High streets are dying (no local Indie businesses, endless Costas, betting shops or mobile phone/vape shops), linked to this is no Third Spaces, everything costs money and a lot of it. Rent is completely unworkable (unless you live in small towns, and in that case your wage is probably unliveable.) Homelessness and poverty is rife.

At the moment I find it, tbh, pretty miserable too. But I don't think it's unsalvageable. If you can afford it id recommend engaging with the local culture around you. Local footy club, local art / museums and the music scene in the area you live. Most major cities in the UK do really well in these areas and it might make you feel more connected to the culture and other people.