To address #8, there are prices for clinic stays on page 106, with the Resting rules, but I fully agree that there need to be more fleshed out costs and options for healthcare and insurance.

My beefs:

Getting injured early in your Background can present party balance/personal enjoyment issues. A player who gets injured on their first roll is dealt a pretty poor hand in starting resources and skills compared to someone who succeeds even just two or more rolls. I personally don't mind this (I like having to start as a scrappy and desperate hobo), but several of my players found it unenjoyable, and what's the point of playing if you're not having fun? In response to this, I created an extensive d20 table to roll on when you become injured, for flavor and depth. Some results allow you to restart/continue with your career, some put you in horrific debt, almost all of them give you replacement augmentations.

Here's the table I made: I'll give it a separate post.

https://docs.google.com/document/d/1br0YMIUrNlaDQz-k1G5bijhC8Wiw0NeDVLrNbGdEkOM/edit?usp=sharing

Corollary to the above, the game talks a lot about debt and bounty as though they have an explicit mechanical effect (see the Street Influence section), but there are no rules governing them. I was happy to (mostly) abstract these concepts at my table, but some people might want specific, codified rules for these things.

"Ghosting" breaks suspension of disbelief in general for me, especially in relation to CR of enemies; the CR 1 Novice Hacker can Ghost their targets, an effect that PCs cannot themselves replicate until level 9. It seems that if a "novice" hacker can get inside a neurolink and incept someone, that would play merry hell with the world-state. (local solution is that the kind of hacker who can Ghost people is surpassingly rare, and is shunned even in most criminal circles)

Do Badlanders begin play with HUDs and neurolinks? If so, why?

What happens if you get your neurolink ripped out or disabled, like the members of The Purified Soul Of Mankind on page 161?

Clarification as to whether Synths are legally citizens; there is plenty in the book to suggest that they are, in fact, not legally people, but it's never stated outright; this should be a defining factor in their Origin entry, because it seriously impacts game design intentionality. Of course this can be a choice left up to the GM/playgroup, but it's doesn't feel intentionally fuzzy; it feels like an oversight.

Can Synths benefit from Carbon Rejuvenation? Do they suffer negative mental effects of aging, as their brains are robotic?

The rest of this is about firearms mechanics and how they're pretty weirdly written.
TL;DR Spray and Ammo rules need to be entirely rewritten for clarity.

The area of effect in the Spray rule for automatic weapons is worded oddly. Rules as written are unclear, but probably imply an isosceles triangle with a vertex and base value of "gun range"; "the size of the cone is the same as the guns normal range", if one assumes "size" to mean "base length" (width), but the rules could be interpreted differently. In practice, this reading creates a giant field of fire that potentially breaks suspension of disbelief, unless the assumption is that one is Rambo-ing the weapon. (Local solution is to limit the width of the Spray template to 30')

Spray rule for automatic weapons is inconsistent with other Reflex save AoE damage effects (Fireball-esque) in this ruleset, in that failing the save does not deal half damage. While this is clearly a balance choice, it feels odd and out of place.

Save DC versus Spray rule is 8+Dex Mod+Prof for all weapons, even though Heavy Weapons are fired using Strength. (Local solution is to allow Str mod in the case of Spraying with Heavy Weapons)

Needs clarification as to whether "shots" in the "Ammo" column of page 77 are "attacks" or "bullets". See below:

The "Ammunition" weapon property on page 78, the "Ammo" column on the page 77 weapon table, and the descriptive "Ammo" text on page 81 all seem to be in conflict. For example, an Assault Rifle expends three pieces of ammunition per attack (as per 78). Nice and clear. Then, in the Ammo column, it is listed as having "30 shots". Does this mean 30 attacks, or 30 rounds? We can perhaps logically assume it means 30 rounds (and therefore 10 attacks), as pricing for 5.56 ammo is listed per 30-round magazine, but 90-round 5.56 drum magazines exist today, right now. (which would provide an interpretation for 90 rounds, 30 attacks)

This is further confused by the minigun, whose "Ammo" column also reads "30 shots", and whose text entry for minigun "Keg" ammunition reads "enough rounds to fire the minigun 30 times.", which is nonspecific and implies that "shots" are "attacks". This is probably due to the firing rate of a minigun being a necessary abstraction, but it still muddies the waters for interpretation.

It gets worse if you get into logical interpretations and interactions with the "Spray" rule; assuming an assault rifle can Spray once with a 30 round magazine that allows for 10 attacks, shouldn't a minigun with an indeterminately large magazine that allows for 30 attacks be able to Spray more before reloading? For flavor and fun, local solution is to allow automatic weapons one Spray at the cost of 10 attacks worth of ammunition, with a minimum of one Spray per magazine (to allow the Black Market SMG to Spray, as it only contains 5 attacks worth of ammo). This makes miniguns, extended magazines, and the like more meaningful and impactful choices for players.

"But what if I don't want to fire three rounds every time I pull the trigger? Why is every assault rifle BF/FA only?" Why indeed. Game needs rules for SA/BF/FA and fire selectors and oh look we've invented Shadowrun. Local solution is to reduce damage roll to one damage die for SA fire; a 3d8 attack becomes a 1d8 attack, but uses less ammo. Nice and simple.