ILR Timeline for Global Talent (Exceptional Talent route)

Thanks.
I wondered only because @Anurag_Singh mentioned in his post that he specified his arrival date instead of the visa grant date.

It says, ‘I put the date I ARRIVED in the UK on the NEW GT VISA (which was few days after the grant date; some people say they put grant date but I had put arrival date).’

More clarity would be helpful, please.

Cheers.