TU requires all faculty teaching in traditional classes to teach live. There are some limited exceptions if the teacher is ill or traveling on University business.
TU permits athletes to enroll in their online offerings but those course offerings are mostly limited to nursing and cybersecurity.
Athletes can enroll as transient students, typically over the summer, for certain online courses but those credits often have to go through the scrutiny of the clearinghouse.
In the case of football, they don’t miss class typically unless it’s a Friday road game. So we are talking about 4 or 5 missed classes at most, the faculty are notified in advance, and efforts are made to limit the impact of missed classes. When you consider that all other classes are mandatory, most non-athlete students miss more classes than your average football player.
Compare this to multiple current LSU athletes who have publicly stated they have never attended a single class in person and would transfer if they were forced to do so. You wonder if they are learning anything and if they are even doing the work. FSU was famously put on probation, in part, due to allegations volleyball players helped football players complete online tests in the computer lab, some sitting on their lap during the process.
Hope this helps.