Howdy! Like most medical schools, TAMU's lectures are optional, recorded, and maybe 20 - 25% of the class attends in person. Currently, we have access to the previous year's recordings, the current year's recordings are posted several days after the lecture, we get access to lecture handouts (and/or powerpoints), and you are only allowed to Zoom into the class if you have an excused absence. Even ignoring lectures entirely and just studying the handouts is typicaly sufficient for all material covered on the exam.
There are mandatory in-person events that you will have at least once a week for your practice of medicine class and how often additional mandatory events come up depends on the classes you are in. You can expect many mandatory afternoons in the first classes (namely anatomy, histology, and neuro) to do dissections/labs but very few mandatories in most blocks. The rare in-person, mandatory events that aren't for a lab tend to be a visiting clinician or patients coming to talk to the class.
Edit: Anatomy labs do take quite a bit of time but histology labs don't take too long and neuro labs are very quick.
If you miss a mandatory event without a valid excuse then you lose 1% on your final grade in the course; however, the department which handles attendance has been very lenient and willing to work with you if you do have something to use as an excuse, in my personal experience. Please let me know if I can clear anything else up!