There are museums and parks in the UAE. It's so much better than just malls 😁 We led a very outdoor lifestyle for six months of the year with lots of picnics in parks, eating in the garden, BBQs, camping in the desert. And yes, culture. There's book festivals, arts events, live music, safe music festivals for teens where they can't get alcohol and won't be offered drugs.
And museums:
https://gulfnews.com/lifestyle/community/all-47-of-the-uae-museums-1.2007093
Personally on the schooling, I think you'll be fine until year 9 at least. If you want U.K. Uni fees and (more importantly) a loan - they are decided separately - one parent must be resident in the U.K. for three years prior to entry. This is getting tougher and tougher to get around. There are ways to tip the balance for home fees like owning a house you don't rent out and making sure you retain links to the U.K. with regular month long summer trips back as a family - and have the tickets and bank statements to prove it. But you need to have a plan from year 9.
Are the schools on a par? Not really for GCSE and A Levels, but really amazing for early years and prep level. Teachers are mostly young, on their second jobs, incredibly keen and enthusiastic but with no experience of, for example, teaching a GCSE cohort. Teacher turn over is regular, unless it's a spouse of someone else working in the UAE or SLT. Barely any staff will have worked in an independent school in the U.K. so they very much have a state school mentality to everything.
The inspectorate are mostly all retired state and ofsted people so it's from above too. Add to that the fact almost all schools are for-profit schools and the sum result is not going to be as good as a good independent school in the U.K.
That said, children have an amazing time there and mine loved it until the end of year 8.
There are huge advantages to going for a couple of years. Mine were the only children in their "British" international school who weren't bilingual. They were in the minority as white British. They have friends all over the world now. Their eyes were opened.
They also were protected. My 13 year old could wear a bikini on the beach and not get a single catcall or second glance. She went to festivals with a group of friends and they didn't need an adult. People can dismiss expat bubbles; but she didn't grow up too fast.