FTA:

“Newton’s envisioned instability is real after all,” the team. “He was mistaken only about the perpetrator.”

The news isn't that the solar system will eventually collapse (the concept of entropy isn't new) but that the mass loss is not predictable and smooth and the impact of the irregular mass loss fucks with their orbit:

The recently measured white dwarf recoil demands asymmetric mass loss that is most readily attributed to discrete, independently directed ejections that impulsively perturb stellar motion.

People are acting like it's not a problem, but if we have just one more downgrade of that magnitude, we'll be in big trouble

If an article's title doesn't make sense until after you read the article, then the title is meant to ensnare rather than inform. Aka click bait.

Didn’t they say in the episode that humans had long since left and it was preserved “as it used to be”. I would assume if they had a space station that could survive a supernova they’d have a way to make things fine on the surface.

If we stay around for another million years we may get to the point where we could increase the earth's orbit, allowing us to stay in the habitable zone for far longer.

I think either way it's just speculation how things will be affected. Like space is big but it's also going to be chaotic af and remember that both galaxies have inner cores containing supermassive black holes and a higher density of stars, as well as both galaxies have satellite galaxies with their own cores that can join in on the chaos. Those black holes have high energy jets that they shoot off perpendicular to their accretion disc, which could get messed with as matter starts coming from all directions instead of generally falling in from the galactic disc.

Currently, the stars in both sets of galaxies have relatively stable stellar orbits and are moving together. The collision will affect those stellar orbits, not just increasing the number of rogue planets flying around out there but also the number of rogue solar systems, including a non-trivial number that will be flung from both galaxies.

No idea what would happen to us if our solar system was one of those. Do we need a galaxy or would it just make the night sky more boring to not be in one?

yup it would be an absolute beauty to see it!

Humanity will probably either wipe itself out in the next couple hundred years or last for a long ass time

Either we're going to get our shit together and start being caretakers of life, or we're going to end up like Venus

Even if modern society gets destroyed and we started over technologically, the easily accessed fossil fuels are significantly depleted. We might redevelop in a greener way by necessity, or even just find stability as preindustrial societies

Or we just get our shit together. We're going to have to do some terra forming if we want to return to comfortable Holocene conditions, we'll need to change how we live, but we're going to have to make some big adjustments soon no matter what we do. Hopefully we take that opportunity to grow as a species