Under governor Greg Abbot, Texas has remained largely open and without restrictions during most of the pandemic. On August 25th he announced a ban for all vaccine mandates: https://www.politico.com/news/2021/08/25/greg-abbott-texas-vaccine-mandates-506898
Many of the larger districts/counties are requiring masks in schools. Currently there are no mandates or restrictions, and everything is open 100%.
Updated: August 28th