A found Alien tech upgrade for your tadpole that lets you jump to all bases which include a beacon for that tech. You have to use one of your upgrade slots in the tadpole to fast travel. All elements of this tech need to be resource searched, blueprinted, and installed.
Game purists who dont want to fast travel can simply not use the tech.
I know Fast Travel seems to get a lot of downvotes from purists who get a thrill out of evading the Collector. But in this game, you have to do that 1000 meter crossing an endless amount of times, and this is in the pre-release walled version. Once those walls come down and the map gets much larger, the need for Fast Travel will become more present.
Lets face it, there are plenty of dangers in Subnautica 2, but there is also a lot of wasted time crossing massive areas that pose no threat at all. Exploration is still exploration, but the hours and hours of mindlessly crossing a map is not much fun.