I saw that page but given it boasts of check-in at Paddington which was scrapped a while ago, and the fact that two hours seems quite short, I thought I’d check.

I have various reasons for wanting to arrive earlier
1. Public transport timetables either mean I arrive before check in opens or after, and I’d rather arrive earlier and have breakfast in the lounge than stand in a queue waiting for the desks to open.
2. If it genuinely does opens 2 h early and closes 45 m early then it doesn’t leave much time should I aim to arrive on time should there be any delays