Part of my problem stems from the lack of typed libraries across the JS ecosystem. Party supported typing leads to more issues, I've found.
Then there's the IDE. I don't use code hinting. In fact, I find it irritating. So, I draw no benefit from TS in this regard.
Then there's the cryptic error messages. They've gotten better over the years but I always seem to spend more time debugging TS than writing code.
And finally, I just don't run into the kinds of errors people talk about solving with TS.
That said, I did enjoy the strong typing that AS4 provided back in the day. But TS is intolerable to me and I've worked with it for years.