On one hand there is the impact on web sites which will lose more traffic but on the other hand this will kill the trash ad networks (maybe good in many senses but problematic from antitrust perspective) and also also a lot of trash sites that dominate search results. No more fandom, no more Forbes. The trouble is that the web accessible from Google has been so bad for so long that people aren't going to miss it.
For instance I've been playing the game Arknights where there is a pool of 366 'operators' of which every player has a subset so it is difficult to give a walkthrough that works for everyone and you often have questions like 'Should I use resources to upgrade operator A, B, C or D?' and AI Mode gives me a good explanation of the tradeoffs -- the alternative is Fandom sites which have endless incomprehensible tables or spending hours surfing Reddit where half of the opinions are off the wall, complete garbage ads are blended seamlessly into the content and god forbid I accidentally hit the mouse button anywhere because I get navigated somewhere completely random which might be NSFW.
Similarly I was helping my son look for a rackmount MIDI synth and you could spend hours watching people drone on about it on YouTube or looking at Ebay listings or other sources or you could get some good choices that are well explained and have some links.
The "dead internet" is finally going to die.