Somewhat drifting away from the original posting by the OP, but a few random thoughts.
The Lumix lenses are also good. In 2020 I picked up a Lumix GF1 as a walkabout camera, it came my way at a bargain price and I decided to go with the flow and try to move away from my heavier Nikon and Fuji kits, so I bought the Lumix, the EVF, two lenses and a small bag of accessories, for AUD $300 (<US $200), maybe expensive to you lot in North America but I reckon good value Down Under.
The Lumix 'standard' 14-45 is a stellar performer, I also have the zoom which I believe is 45-150 but I shamefully admit I've not yet used it as I'm not tele visual. During the Covid lockdown those of us who live out of Melbourne found it difficult to go to the city (med apps excepted, there weren't many places open for us to shop in anyway) so I went to country areas (Ballarat, Ararat, Castlemaine, Bendigo) to check out the local scenes. The sharpness and colors of those Lumix lenses rally impressed me.
Obviously, those Lumix lenses may be somewhat inferior to the upmarket Leitz versions (in this I may be wrong and my cynical nature makes me say they are probably as good as the so-called German versions, but I have no proof of this so I will say no more, ha!) but they make truly wonderful images in their own right.
Since our lockdown ended and Covid has sort of moved into history (let us all hope forever), I have mostly shelved the GF1 and in fact I've thought of selling it, but its value is so low that I decided it was not really worth the aggravation of dealing with Ebay. This month I've looked at many of the photos I took with it, mostly on walks in Ballarat in Victoria (Australia) which is a most unique and interesting place to visit with a camera, and I am amazed at the quality of what the GF1 makes.
A friend has described it as "a mini Leica"which interestingly is what the late great Ernie at Camera Lane in Melbourne called my Rollei 35 in the 1980s.Sadly, I sold this camera. I now look at what Petronius here at RFF does with it, and I miss it.
I will again be in southeast Asia from next month and I'm tempted to take the GF1 and the two lenses. These days I'm trying to move away from using my FF Nikon DSLRs and my (too many) lenses as the kit is heavy and at my age I prefer to travel more lightly.
In the summing up to all this I will say I would happily have bought Lumix Leica lenses if I could afford them. The 9mm would be 18mm in '35' terms which has long been my favorite lens to use. But realistically I will make do with my Lumix 14-45.