Both events tend to primarily offer Meta Quest deals, but sometimes other headsets are avaialable at a discount.
Although many high-end VR headsets never get discounted, the cheaper models will almost always get price reductions during a few different sales events every year. One of the overall best shopping events for VR discounts is Amazon Prime Day, which takes place in July every year. After that, Black Friday and Cyber Monday tend to have the best overall deals consistently. Both events tend to primarily offer Meta Quest deals, but sometimes other headsets are avaialable at a discount.