At my former company we paid 900€/month for 1Gbit/s, which we required. That's definitely a problem when the same performance is available for ~50€/month a few kilometers over the border (in the Netherlands).
In rural regions workshops output is limited by their internet speed as the can only download that many CAD files from customer per day.
The main reason I use postgres instead of SQLite is that I have multiple processes accessing the database, often 1 web service for API/Website and a worker running in the background doing heavy tasks (e.g. image processing). Both need access to the database and SQLite will run into locking issues.
IIRC there has been a case in Germany where it was ruled that opening devtools is hacking and therefore illegal intend. A person found a vulnerability by looking at the website source (using devtools) and informed the company. They then sued him using the "Hackerparagraph" (§ 202c StGB) for use of hacker tools.
It only stores (timestamped) floating point values with a series id and uses a B+Tree as the backing data structure. Querying is done with a lisp-like query language.
I've added ActivityPub to my blog system (https://h4kor.github.io/owl-blogs/) as just another way of subscribing to the blog, but found that it is a good model to support interactions.
For the first years of its existence I only new tiktok because they were advertising everywhere.