TBF, English media is very warm to him. Having all kind of pressure from every directions at PSG (players, directors, home fans, media, fans from other league...); coming back to England is tempting. Tuchel success at Chelsea jumping the ship mid season, also encouraging (not exact same situation though) from his POV, perhaps?
Him at least winning the French league may prevent him from being seen as career ending failure, but it wouldn't boost his credential further, if his next goal is to manage historical big club, which is us. Given the chance, it's tempting.