Comment by SoftTalker

I do bisecting almost as a last resort. I've used it when all else fails only a few times. Especially as I've never worked on code where it was very easy to just build and deploy a working debug system from a random past commit.

Edit to add: I will study old diffs when there is a bug, particularly for bugs that seem correlated with a new release. Asking "what has changed since this used to work?" often leads to an obvious cause or at least helps narrow where to look. Also asking the person who made those changes for help looking at the bug can be useful, as the code may be more fresh in their mind than in yours.