I would look for a lightweight siliconised Nylon two bow tunnel with not too small vestibule (but also not too large) and high quality aluminium poles that attach to the OUTER tent, NOT to the INNER.
No mesh overhead in the inner tent, because condensation water rain would become a problem in this case.
The best option is in my opinion the Hilleberg Nallo2.
A used Nammatj2 might be an option too but it's heavier, far less comfortable to enter and is mainly constructed for the weather conditions that you try to avoid.
The Nallo2 works in such really rough weather conditions too but isn't constructed for the Himalaya. The Nammatj2 is it indeed.
I wouldn't go with a cheaper tent to the Atlantic coast or in mountains without vegetation. One can do it if bivvy bags are on board, but anyway it's surely no pleasure if your middle class tent breaks in a storm.
Bought from a trusty seller a just a bit used Hilleberg tent usualy is the better investment than a new middle price tent.
These 300 € tents usually aren't constructed to stand free at the Atlantic or in areas without any vegetation in all weather conditions. Yes, they break. Most tents simply break in a storm.
There are a few a bit cheaper, heavier also very robust tents on the market. Helsport could be an option for example. But I don't really know these, as I bought more than 25 years ago a Nallo2, because I was already as a student tired about failing middle class tents.
It's possible that in between the competition came closer to the Hilleberg quality level. As I didn't spend so much time in the last years on camping grounds northern from Germany I simply don't know that for sure. Wechsel seems to make also good stuff for example.
But if I look at the details of such tents I usually loose the interest pretty soon.
But that doesn't mean that a good Nallo2 copy can't exist. The problem is just, that most informed people will avoid the financial risk to try out such a copy.
The more the chosen construction differs from a Nallo2, the less convincing it will surely be for you. So, if you don't buy a new one or find a good used one for a sensible price, you should look for a copy that's as close as possible in every detail.
Igloo tents are strong but heavy and often it rains into the entrance, directly on the sleeping bags.
I wouldn't buy such a tent for 3 seasons use in Britain. They are sensible for bad weather conditions and really strong people or those who don't carry it in the rucksack anyway.
It isn't easy to make an easily portable good tent that's storm resistant and works well in a rainy country.
Most tents are transported by car or bicycle and pitched in wind protected places. And the tent market reflects that.