My take on Berrios is that he's unnecessary in the regular offense except to occasionally give relief snaps. His skill-set is shifty slot... pretty much what we have with our top two. He provides nothing that we didn't have already-- intermediate routes. He's the new Punt Returner and will be a forgotten man if H/W remain healthy.
If we put Hill out wide, I'd rather go 'big slot', than an all-smurf offense.
Chosen, to me is purely a y option. Most of his routes will be deep with the occasional slant to keep his DB confused.
I see Achane as Mostert's replacement... I don't think he'll give us anything that Mostert didn't already provide (again... hope I'm wrong here).
I like the fact we signed the three you mentioned, but I don't see them as what I honestly think we needed to acquire. Again, I hope Achane proves me wrong, but I think he's too small for the pass protect and outlet pass role that would make us so much more dangerous.
If EZ doesn't blossom this year, I'd spend a one or a two on a bigger X-style WR.