You are misunderstanding me. I'm writing about an employer telling employees that an specific action (not showing up) will count as a resignation. It seems so weird to me that this isn't in the contract.
If you were my employee and I said you had a shift at say 8am and you never showed up then I'd just fire you _with cause_. There's no need for it to count as a resignation.
Looking at Texas's site [1], they explicitly say if your employer asks for a resignation it counts as being fired. There are also a bunch of ways for quitting to be eligible (i.e. "Significant changes in hiring agreement").
[1]: https://www.twc.texas.gov/jobseekers/eligibility-benefit-amo...