I may be banned (hope not xD) - but i recently play Solasta early access. It basics on same D&D rules and WO-HOO there is all right with chances! Hey rly i have some critical misses - but it feels normal. It feels ok while you have atack +6, enemy AC 15 - and you miss(55% on hit). Even when i miss twice in a row. BUT - for all fights in this game (lesser then in BG3 in 3 times tho) i have only one! loose strick - 3 misses in a row with 70% on hit. Its just not normal in BG3.
To me it isn't the critical miss, it's the 5e disadvantages feature and many enemies are in unlit and low light settings which means for your To Hit Roll you roll twice and it takes the worse of the two. I can tell you that really really ups the chance of a bad roll and the start the miss game. In that game I haven't found a way to shoot light at a distance at an enemy to make them lit to get that off, it seems it could use something like that. If any of this commentary can be used in BG3, great.
The problem is dat i know about 2 rolls when you have advantage/disadvantage - i say critical as critical for battle and my win, not situations when you roll 1, and my "complaints" not about this. I say when in BG3 i fight against some dendroid or whatever they are (small island on swamp) i made good job to set my vampire behind them. And he miss 4 round in a row! he had 84% success on anatck! Ok fine lets suppose dat he has like 50% chance on hit, and dat 34% - estimated increase of chance to hit from sec roll. Then he made 8!! 8 rolls - and all failed. 0,34+% chance on dat. Ok, ill take it. But why!! Why i have similar situations 7 times? I remember all of them. I dont remember my fails in Solasta because they were "natural" - and yes i have my fails even when enemies was lightened up and when i strike from stealth. Its ok. But when you do ALL that you can in principle to enlarge you chances but game said you "Nah, forget it!'" and all your team miss 7/8 atacks on 6hp ogre (4 main hand and 3 off hand atacks) - when ALL of them stay behind him in the yard at noon... it is not right. In a board game you can explain this as bad luck or you have hands out of the ass, but when you have dat situation on conputer... and only in 1 game - dats suspiciously.