New camera GFX100RF

It does, but are you / were you using compressed raw or uncompressed raws? Might make a difference? tbh I've not really seen much of a slow down across my older M1 MBP original, my M2iPadPro 16gb or my replacement M3Pro MBP with 36gb. The later is a bit quicker, but nit amazingly so, and they all handle the files just fine. I'm not a LR user, C1/DXO/Affinity on the laptops or C1/Affinity on the iPadPro

Ho ho ... years ago, I bought a Sigma DP2 Merrill ("huge" 45MP raw files) and dutifully down-loaded their proprietary converter to my 32-bit one-core HP machine running the wonderful Windows XP. Adjusted something and waited a minute or so for it to show up in the Review window. I am not one to rush to latest OS just because someone wrote something that slows it to a crawl, so I sold the camera.

I sold it yesterday because I don’t see a reason to keep it for my own use case.

Because it's a beautiful work of modern art. It really is beautiful. Combined with a couple of Sigma's small i? series primes, it would make a gorgeous, capable, take out to dinner or take away with you on holiday camera.

It depends on what you paid and demand for second hand.

It’s possible, but I don’t think there’s the same level of craze for RF.

I have a DP1 Merrill and used it with a Dell W7 desktop. I remember those 1 minute plus waits to edit a photo. Always figured it was faster than when I developed film in the darkroom 😀. It is a strange, but lovable, camera. Never knew what results I'd get. Sometimes absolutely amazing, other times totally off the track. When I got the Pentax 645Z everything changed. Much higher quantity of wow shots. The poor DP1 is just sitting on the shelf. Need to get it out and have a go. Sure is smaller and lighter than the Z.
Thanks,
barondla