As of my knowledge cutoff of September 2021, there were no reports of Texas considering a bill to accept Bitcoin as a legal payment method. However, it's worth noting that individual states in the US have the authority to regulate their own payment methods, and there have been some developments in other states regarding the use of cryptocurrency.
For example, in 2019, the state of Ohio began accepting Bitcoin for tax payments, although the program was ultimately discontinued due to low usage. In Wyoming, a series of laws have been passed that create a legal framework for cryptocurrency businesses, and the state has become a hub for the industry.
It's possible that Texas could follow in the footsteps of these states and explore the use of cryptocurrency as a payment method, but as of now, there has been no official announcement or confirmation of such a bill being considered.