

SingleFile provides a faithful representation of the original webpage, so bloated webpages are indeed saved as bloated html files.
On the plus side you’re getting an exact copy, but on the downside an exact copy may not be necessary and takes a huge amount of space.
Never heard of them , but sounds like they’re gaining traction.
They’re also a financial supporter of open street map: https://blog.seznam.cz/en/2024/12/mapy-cz-now-financially-supports-the-openstreetmap-project-helping-to-contribute-to-its-operation-and-development/