I disagree - he is a starter for the USMNT. I'm not saying Liverpool is scouting him, but he definitely would have offers. Maybe not the 15mil or whatever RB wanted a couple years ago, but maybe 2-3mil? to a lower EPL team - I believe he can leave for free after next year too (not sure on that).
he signed a 3 year deal right before the 2019 season (link). Especially with the pandemic impacting revenues a free transfer for a national team starter is a no brainer for some teams. No one is expecting him to being playing in champions league but there will be interest if he wants to go.