I mean Lewa has certainly won way more on a club level ( but so have most players compared to Kane
), also individually where he won the European Golden Shoe twice, was voted the Worlds best player twice, topscorer in the CL etc.
But watching Kane here with us, I think he could've done at least as good a job over time. And he joined a Bayern team who seems to be on a slow but noticeable decline. Lewa for the most parts played for a superior Bayern team I'd argue, he also had better coaches in Pep, Ancelotti and Jupp. Not to forget Flick.
And not to forget Kane playing his whole career in a much inferior team in Tottenham, but still managing to score something like 20+ goals in the PL on a yearly basis.