In China:

VPN

VPNs are commonly used by foreigners in China. You can generally find the best VPN to use via Google or by word of mouth once you are there. Personally, I use Mullvad VPN as it is the best for my needs but do your own research! It may be different for your region. Something I learned that I found useful is that E-sims allow roaming without the need for a VPN in China, but you wont have a Chinese +86 number.

Food

Food depends a lot on the region. In the south, rice is the staple; in the north, it’s more noodles, dumplings, and buns. Popular dishes include Peking duck, Sichuan hotpot, and stir-fries from Cantonese cuisine. Tofu, pork, chicken, and vegetables are used in most meals. Street food like dumplings, skewers, and noodles is common and cheap. Vegetarian options exist, especially in bigger cities.

Transportation

DiDi is the Uber of China and will be the most common form of intracity travel due to convenience, typically 10-30 CNY (~£1-3). Buses are a great way to get around and are normally 2 CNY (20p) per route.

Travelling city to city will depend on distance. The high-speed rails are recommended for distances less than 5 hours, any further than that and I'd recommend travelling by plane.