Mediocre TT, but many if not most of the GC guys, bar Yates, Hindley, Martinez, Haig, O'Connor, and, of course, Vingeegard, did fairly mid TTs today. Sure, Bernal has tended to do mediocre TTs and very few good ones throughout his career. I think the best comp would be Martinez at the Giro, flatter TT but equipment was likely very similar as well as distance and he lost 32 seconds in 2021 and 1m30s this time. But then again it's pretty safe to say that Martinez has logged more miles on his Bolide since then.
So while it's hard to get a good read at this point he's somewhat below par but also not far off the pace, we'll see how it goes in the mountains. What we can also surmise is that he did poorly enough that unlike Martinez he's probably out of contention for a top-5 but he did well enough that Ineos will likely want him to keep riding for GC.