I'm not the biggest fan of estimates given in terms of last gen consoles like PS4-like or whatever. I know it has its use, but there's just so many differences in architecture, RAM type and capacity, storage, GPU feature set... there are certain PS4 titles that the Switch 2 would eat for breakfast. And it's also weird when a common comparison is to a Pro console, which had no exclusives and its raster power was used to render PS4 games at higher resolutions, so the discussion just gets muddy. Like if we're saying 'its a PS4 in handheld but much better CPU, more RAM, better GPU' then the comparison starts to lose its potency. But I also personally don't like when the Switch is called a portable Xbox 360, so I'm particularly finicky.
These comparisons have been useful in the context of this thread where there's an ongoing consensus but now that they've been regurgitated across the Internet without the benefit of having others clarify, there's just been a mess of expectations. That and we don't even have clock speeds yet to further ground these estimates.