I personally find the “meh, fuck it,” attitude to canon quite refreshing, personally.
I place BG1, BG2, IWD1, and IWD2 in their own bubble continuity. My CHARNAME is the descendant of some of my IWD characters, and I ignore all other lore not found in the games.
Since there is a non-zero chance BG3 will conflict with my headcanon ending for BG2, I’ll just place that in a separate, what if continuity.