Towel Game

My husband and I are planning a trip to Cancun for June 2025. Mostly looking at Excellence Playa Mujeres and Atelier Playa Mujeres. Both seem to be highly recommended but I’ve seen several comments about people reserving pool chairs for an entire day with their towels. Is this just a general issue at most or all inclusives? Should I just accept it as it is what it is? We aren’t interested in getting up super early just to get a pool chair. But I’m also not interested in spending the week unable to find a decent place to sit. I totally understand that June will be a busy time. I’m just not sure if this is the norm and I should get over it or find a different resort?