The COVID-19 pandemic may not have felt like it had as big of an impact in 2021 as it did in 2020. But one thing that came from COVID-19 that's still in place is the NCAA's eligibility rules from the 2020 season.
Prior to that season, the NCAA announced that players wouldn't use a year of eligibility if they played in 2020. So a junior in 2020 would still be classified as a junior in 2021.
That means that for the 2022 season, there are a number of guys who will be returning for a fifth, "super" senior year of sorts.