Yeh was going to say
Even though royal mail says received today
They won’t update it for probably 10 days
Then you have a week to 10 days probably for passport to be approved and in hand
My docs were received on Feb 1 by Royal Mail but but my application was approved Feb 18 and then sent new passport today Feb 21 so you can probably add 21 days to your Royal Mail delivery date for a decent expectation? Most peoples have been taking similar time to that