Ryanair Bristol to Dublin - will I be charged if not there 2 hrs early?

Haven't flown much before but in my internet surfing I came across someone saying they got charged by Ryanair because they weren't there two hours before their flight
On the Ryanair website it says the desk to check in luggage closes 40 mins before flight and boarding gate closes 20 mins before.
Obviously,like any sensible person I am planning to get there a lot earlier than this but maybe not quite two hours early.
Would be good to know.Can anyone tell me please? (thank you)