"resets your technologies but keeps your infinite bonuses"

does this mean that only the bonus values are kept, while the technologies that unlock them stay the same, letting you stack the bonus values higher the next run? or does it just mean that you start with the bonus techs already maxxed out, without being able to go any further?

The former! Say you have space asteroid productivity 10 (100%), and go through the wormhole.

When you eventually get to Gleba and can unlock Asteroid Productivity 1, the bonus goes from 100% to 110% :)

There are some technologies that don't give infinite bonuses: these seem to reset back to zero when you go through, like belt stack size and robot carrying capacity: those reset to +0, but infinite techs behave like I said.

The thing I've not tested is whether you can increase recycling productivity recipes above 300% this way: if it is possible I'll need to bug fix it

excellent, thanks for explaining :)