For $3600, you can buy a Leica TL2 plus a single zoom lens.
For $600, you can buy a Panasonic GX85 including a 12-32mm zoom lens.
For one-sixth the price, you also get the following extremely valuable bonus features with the Panasonic:
1. Image stabilization.
2. A viewfinder. (Although you can get an add-on viewfinder for the Leica for $575. Which brings the total price of the kit to $4,175.)
Is the Leica Vario-Elmar-T 18-56mm f/3.5-5.6 ASPH lens sharper than the Panasonic kit zoom. Probably. Unless you get camera shake because your shutter speed is too slow and you don’t have image stabilization, in which case the Panasonic is going to be sharper.
If you wish to upgrade from the Panasonic kit lens, there’s a Panasonic 12-35mm f/2.8 zoom lens that includes optical image stabilization, is well regarded for its sharpness, and costs only $900 which is about half as expensive as the least expensive Leica T lens. There’s also an Olympus 12-40mm f/2.8 lens that’s about the same price and also well regarded for sharpness.
The alleged target market for the Leica TL2, rich people upgrading from an iPhone, don’t need the world’s sharpest lens anyway.