I have, in the last month, resorted to searching StackOverflow for something that works when Claude perpetually got it wrong three times in a row. It felt nostalgic that the answer was there in plain sight, and it just kept trying other things. So searching StackOverflow isn't quite dead yet.
Of course I still have times when Claude fumbles the fix. But the number of times it gets it exactly right far outnumber the times it can't get right. Compare that to the number of SO issues I've had to go through to get near a solution is night and day.
I'm in no way saying you should work the way I do or that Claude would solve all your problems if you only just believe. I am saying it's been super helpful at squashing bugs for me in my circumstances with my code bases.