That surprises me. When I worked in the Uk in a regulated industry, I observed it is very risk averse and process focused. I'm surprised the government can consistently turn around a response in 30 days.
They don't, e.g. [0], [1], [2], etc.
[0] https://ico.org.uk/about-the-ico/media-centre/news-and-blogs...
[1] https://neilwilby.com/2026/04/02/when-delay-becomes-denial-a...
[2] https://www.independent.co.uk/news/uk/foi-department-for-int...
https://www.ukjournohub.com/foi/foi-deadlines
I've also experienced this many times personally. Acknowledgement is immediate, and the request is done just under the 20 day mark.