Inter Miami's interest in Eden Harzard I think doesn't have much things concerning the player's fitness or what he can offer to the club on the pitch rather I think they want to sign him because of the global publicization his arrival will bring to the club.
Eden Harzard's career is currently in decline and he has confessed to the media that it won't be possible to see him deliver great performances like in his days at Chelsea. Of a truth he'll be a good signing for the club but probably not on the pitch
Hazard moving over to the club would obviously bring in some extra publicity to the club and perhaps they may be looking for some publicity. But I still think he has other things to bring to the club aside publicity. No doubt, his performance is declining and he’s not as good as he used to be.
It definitely would not be possible to see him in top form like he was at Chelsea, but he could still bring in some zing to his game on the pitch. Also, competitive football witnessed in Real Madrid and the Spanish league definitely won’t be same in Inter Miami so I think he won’t be struggling to find a place in the squad if he makes the move.