He can still do this:
Soto's 453-foot two-run smash
https://www.mlb.com/video/soto-s-453-ft-two-run-smash?partnerId=web_video-playback-page_video-share
His WOBA and wRC+ have gone down every single year since 2020
Unless he suddenly manages a huge turnaround this year he's not getting anywhere near 400M