Opticallimits

Sony FE 24-50mm f/2.8 G

https://www.sonyalpharumors.com/confirme...bruary-21/
Looks fairly big to me for what it is?

Sigma 500mm f/5.6
https://www.sonyalpharumors.com/leaked-l...bruary-21/


Makes me wonder whether I should regret buying a FE 200-600mm for my private use.

500mm vs 200-600mm? Nope, I'd say. Let's see price and weight.

1.5 Kg they say.

Well, a 500mm prime sure doesn't compete directly with a 200-600mm zoom. The latter is way more versatile. The prime is more like a complement to - say - a 80-400 (100-400) zoom lens.

1.5kg would be a value prop...

The 200-600 is 2115 grams per your review...

I would also expect that the prime has a better bokeh.
I still have the 70-200mm macro in my stock - so the 200mm end isn't needed.
But yes, flexibility - and especially framing - isn't quite as good.

Just below the $3,000 mark, according to SonyAlphaRumors.