Study by Claude shows AIOs don't just decrease clicks for informational search, they affect commercial search too:

• Informational clicks decreased more, but commercial/transactional clicks still decreased significantly
• CTR decline is much more pronounced on desktop than mobile (my guess is people already weren't clicking through as much on mobile, so there wasn't as much ground to lose)
• Queries of all lengths have lower CTR since AIO launched, but 6-7 words is the query length that had the biggest decrease
• Branded query CTR actually increased some, but non-branded query CTR is, of course, worse

Not sure who prompted Claude to do this study, but I came across it in the Core Updates newsletter.