In AWS, accounts within an AWS Organization are roughly analogous to projects within GCP. Most organisations running AWS in production will have tens or hundreds of accounts managed within their Organization. Segregating by security groups hasn't been the recommended approach for years, for this reason amongst others.
The accounts and Organization model is a slightly clunkier abstraction than projects, but on the other hand the security boundaries between accounts are harder than those between projects, which has its benefits.
The BBC's World Service and non-UK coverage is generally pretty fantastic, but unfortunately they can no longer be trusted for anything related to the UK, speaking as a Brit.
By nature of their primary funding source (a "tax" levied on those who watch TV in the UK through the government, which thus controls their purse strings), they tend to be very soft on whoever the governing party is, especially at present. For one, Laura Kuenssberg, their political editor, has had a lot of allegations of bias against the current opposition party, some of which have been upheld in enquiries. She's also ended up serving as an unofficial mouthpiece for leaks from the conservative party on a number of occasions, parroting party talking points uncritically.
The accounts and Organization model is a slightly clunkier abstraction than projects, but on the other hand the security boundaries between accounts are harder than those between projects, which has its benefits.