Archery

I mean, with this takedown bow from the kit, can’t I upgrade the components to make it better in the future?

Probably not, the cheap wood risers in these kits usually don't fit the standard limb fittings, called ILF. So upgrading the draw weight is going to be an issue. Another weird aspect about this kit is the overall bow length and draw weight, 55lbs on a 62" bow?!? That bow is way too short for anything but a child, and the draw weight is way too high.

Because I feel like the investment of like $500 is a bit steep

It absolutely is steep. That's why my advice is not to do it, but to get the high-end entry-level gear used. Just checking out the main danish facebook group for used archery gear for 30sec I found a 290USD lot, with a samick riser (I can't tell which model), fivics front stab, 30lbs SF Axiom limbs (TBH that's a bit much for a newb), avalon tec one sights, a dozen easton inspire arrows that haven't been shortened, and an avalon classic backpack with the arrow tube. Pictured below. It's not the best entry level setup BUT it's definitely way better than the kit you linked.

Don't get me wrong, if you already bought the kit, and you're happy with it, then by all means be happy. But my experience with a similar kit was that the money was mostly wasted. Better get the 500USD gear @ 40 or 50% off used instead.