<snip> If your game says you have an 80% chance to hit and you miss more than twice then you have your answer.
This is not how probability works. It is perfectly possible to miss 3 times in a row with an 80% chance to hit (or 10-20 times with a 60% to hit). Humans are bad at detecting randomness. Especially because we expect hits and are frustrated by misses, so we're so much more likely to remember multiple misses.
The best way to detect if your game's rng is messed up is to record at least 300 (preferably 500+) consecutive rolls. Then perform a statistical test against an expected uniform distribution of rolls to see if your rolls are significantly different from expectation. It is possible something has happened in recent patches (they did just update loaded dice in a recent hotfix), but all previous data has pointed towards the die rolls on average being mostly* consistent with a truly random distribution. *Larian's non-loaded rng is known to streaky, but it streaks both with low- and high-valued rolls. Again, a statistical test where you record hundreds of consecutive rolls is needed.
