My former employer did RTO with 2 weeks notice, no exceptions. A coworker who had actually moved to a different state moved their family again to comply, only to be laid off months later.
I had sold my car and planned to never own another. Plus the few times I had been in the office were awful, managing virtual meetings with coworkers around and overseas, listening to a sales rep in the next cubicle discussing how best to defraud their customers, etc. I loved that job and my boss fought hard for my ability to stay remote, but they were convinced 100% RTO is the only way to survive the tariffs.