I have just read the below from Sky Sports F1 and it seem Ferrari have been testing all be it with 2018 car you are not going to tell me there was no benefit for 2021?
It does seem Ferrari can write their own rules!
Ferrari complete busy week of testing
Five days, seven drivers and more than 500 laps for Ferrari in their week of testing with their 2018 car at their Fiorano test track.
Junior drivers and last year's F2 protagonists Mick Schumacher and Callum Ilott rounded off the test in the SF71H on Friday, after a week in which the Scuderia's drivers and team got back in the
"The most important aspect of the test was to give the Scuderia official race drivers, Charles and Carlos, the opportunity to get back into the swing of driving again after the winter break," said sporting director Laurent Mekies.
"For the FDA guys it was another opportunity to experience driving a Formula 1 car.
"I think the best thing about the week was the atmosphere in the garage at our home track, with all the guys really happy to be back on track, to prepare as well as possible for the upcoming season."