All task requirements (besides those on Switch) have been reduced 2 weeks ago (6.5 patch).
The amount of troops of a certain type/color to be killed, fights to be won with certain class/team/weapon, the amount of gem matches and so on.
Switch players now have to deal with changed taks (compared to like they were on the other platforms 9 months ago) but still with high requirements.
Look up here for more details: