I'm confused.

I assume you arrived on a spouse visa ?
(because otherwise the biometrics would have been done when the FLR was granted).

So, is this correct ..... you can apply for, and get the ILR without submitting initially
to the biometrics ?
I find this strange ..... as (in the case of a fiancee visa), there is no-way they will
issue the FLR until the biometrics have been completed.

Confused .... as usual