Semi-clickbait headline: as others have pointed out, this is just about who fabs the Apple-designed chips, not a contemplated return to x86. Still pretty interesting if true; would be cool to see Apple diversify from TSMC. I'm rooting for Intel!
There are only three advanced chip manufacturers in the world (TSMC, Samsung, and Intel), so of course Apple has been in talks with all of them.
The whole story is based on a tweet from an analyst anyway. "Company that designs its own chips might use one of the three chip manufacturers in the world, based on my hunch." hmmmmmmmmm... Sounds more like someone just loaded up on Intel calls to me. (Not that the reality of the situation isn't real and obvious.)