Drop in featured snippets and sessions following algorithm update

[M-Widdows]

Seemingly following the Feb 2021 algorithm update (passage indexing) our site has seen a massive drop in featured snippets (from 39 on 8th Feb to 27 on 15th Feb) and hasn't recovered (still 27 on 18th March).

Our site has also seen a steady drop off in sessions in the UK over the past couple of weeks, despite continued increases in the US. This could potentially be due to the loss of featured snippets meaning less traffic to our top pages, but we're wondering if this could also be another change, separate to featured snippets?

Does anyone know if these changes are likely to be linked to the passage indexing algorithm update (or another unconfirmed update) or simply a coincidence and either way, what we can start doing to see our number of featured snippets (and then hopefully sessions) start to increase again?

EDIT: As of 22th March, these have dropped again to just 10 featured snippets - a total of 290% decrease - any help would we appreciated!

TIA

[Guest]

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