Shoutout to On1

[Markuswelder]

But in the end they are all commercial enterprises of which the chimneys must smoke. The only way out is to choose for free programs like Darktable and Rawtherapee, which are really good, but have a steep learning curve and were there is little or no support.

Not necessarily. I'm a happy Silkypix Pro user. The first version I ever bought still runs perfectly fine on an old laptop from the same vintage.
I've updated about 3 times in many many years, their prices are very reasonable -if you buy the Panasonic only versions they're downright cheap to be honest. Like $30-40 USD for the fully featured suite on sale, just restricted to Panasonic cameras. Not 1, the whole current range. And I think you can install it on 3 computers.
Occasionally they'll have a really good sale on the full range of supported cameras software, and I've updated to that a couple of times.
The biggest complaint I read about SP, is that it's different from Adobe products.

 

[DonaldM]

I wouldn’t be surprised if Panasonic sponsored Silkypix, which is not a bad thing. I hope someday Aperture from Apple comes back, they bought Pixelmator last year for a reason I guess. But then I have a massive load of pictures in Lightroom. But maybe this program may be of use then: https://cyme.io/products/avalanche/