sortof yes, sortof no.
Aside from all the conversation about work culture, state taxes are a big barrier to fully remote work. States hate losing tax revenue. Notoriously, it is easier to register to do business in a state than to unregister. This is even harder internationally.
For large organizations, remote can be the difference between one state's paperwork + regs + taxation, and every state and country under the sun's paperwork + regs + taxation. That is a real burden. Not just the paperwork + administrative overhead, but being subject to differing employment + everything else laws from *everywhere* will really muck up ability to run a consistent business.
While fully remote startups can now access services to help with this, like PEO providers like Justworks/Deel, the reality is that most of the world is not setup to accept this at scale. I run a fully remote startup and still run into issues with vendor diligence departments and accounts etc. expecting us to have a physical office, and being totally bewildered when we don't. The people involved now understand remote work, but the systems --forms, insurances, tax nexus decisions, etc -- still very much aren't setup to handle it.
Notably: if you are a bigger company, you can't put the toothpaste back in the tube with all these local governments, and you bet that every locality will be trying to extract tax dollars from the big firms with deeper pockets.