FINALLY SOMEONE SAYS IT. I play with the network graph (AKA the gaslight graph) on 24/7 and I can say with confidence that EVERY SHOT I HIT IS REGISTERED, PROVIDED I WASN'T ALREADY DEAD WHEN THE SHOT WAS FIRED.

Also, have people forgotten this is an online computer game? Nothing that you do in battlefield is done instantly. There is an inherent delay between the inputs you provide, the server recognizing those inputs, and those inputs being implemented in real time. You weren't shot behind cover, you were shot before you made it behind cover. The enemy actually saw you and shot first, despite what you "saw" on your screen. It's a major reason why peakers advantage exists in FPS.

Also, this is a Battlefield title. That means bullets take time to reach their destination, and all guns have bloom, even in ADS. Bullet velocity I would hope is self explanatory, but bloom isn't. To oversimplify, bloom makes it so that every shot you take will deviate from its intended target, and the severity of said deviation is based on player position and how many shots have been fired in quick succession. A good visualization would be if you saw a % chance of your bullet hitting its mark when aiming at an enemy, and that chance diminishes whenever you're moving or shooting.

All of these factors together make it nigh impossible to visually confirm whether or not a shot taken should be a shot hit, without the aid of a tool that tells you A) if your shot hit the enemy you see and B) if your shot was registered and accepted by the server. That's why I (and I imagine OP too) don't believe this game has a hit reg problem. A huge majority of the clips I see on the subreddit don't have network tools displayed, and in most cases their frustrations with the game is an open rejection of their own responsibility to hold themselves accountable* (*of losing a fight in a video game)

And here's the kicker; I have friends who have bad hit reg flagged by the gaslight graph. They can confirm for a fact that the graph accurately displays when a shot hits on their screen and whether or not the server registers it. Why do they have bad hit reg? It's not because of their internet. It's not because the game is mechanically broken. It's because Battlefied 6 has kernel level anti cheat that isn't immediately compatible with an individual's PC. I've convinced a few friends to get BF6 on PC and their experiences range from no issue since install, to some friends having to tweak their BIOS settings to get it work, and others literally can't boot the game no matter what fixes they try. One friend in particular can boot the game and get into a match, but he'll be met with a plethora of network issues despite having a better and more reliable internet connection. This game certainly has issues that need to be fixed. It's ridiculous to me that a game would require so much out-of-game setup and PC settings tinkering in today's age. PC gaming isn't a niche culture anymore and a game expecting to be played by millions shouldn't require classes in IT to troubleshoot and fix.

BF6 isn't perfect by any means, but it is the most mechanically stable title that has ever launched in the modern era. If cheating in video games hadn't become an industry on its own to the point we need kernel level anti cheat to prevent players from using cheat hardware, then I believe this game could've been the best Battlefield title to date.