I'm just one person, so don't blame me, it's just the personal opinion of somebody that watches the french league on a regular basis. But imho, Tolisso will never reach Matuidi's talent. Despite his flaws, Matuidi has superb qualities, and a winner mentality.
Tolisso is more average than great, and has a bad mentality overall. He dives, and has bad blood. Curious to see Ancelotti's reaction when Tolisso will try to break a leg. And the German league is not like the french league (Tolisso got a clown ban of 2 games after having tried to break a leg against st Etienne, plain and simple). When Tolisso will get his 15 games ban in Bundesliga, the meltdown will be fun to see.
Let's talk about it in a year. Tolisso will not become big in Bayern imo.