On 11/12/2019 6:17 PM, Terry Casey wrote:

When this came up last year, I did double check with a gas
fitter I know and trust, and he confirmed that it shouldn't be
a flexible hose. I have a feeling either he, or John (who did
the safety check as Rob is always extremely busy) said it was
because the oven is electric, not gas."

We recently installed a Smeg dual-fuel cooker (gas hob, electric oven).
The installation instructions called for a flexible hose.