From next year they will go back on old free practice.
They increase again the duration from 60 to 90 minutes while in 2021 it has been decreased from 90 to 60.
Don't think is a good move I liked more the 60-minute version, however this year with new cars they probably need these 30 minutes for session back.
I also think this is too long for the viewers on TV, for the spectators at the GrandPrix it is probably better, hard to estimate.
It could easily be that the minutes have been increased again to 90 minutes because of the new cars and tyres, but hopefully they will also increase the number of tyres the teams are allowed to use, otherwise it makes no sense to increase the time except for less driving on the track. Then it will be boring for the spectators again.