401k accounts at Fidelity don’t generally allow one to hold Bitcoin even if they do have a self directed account. With a Bitcoin ETF people don’t need permission from their employer anymore. I’m also skeptical of their current plans and whether they actually allow people to hold Bitcoin. Employees I’ve spoken to in the department have told me the most Id be able to get in a retirement account is “exposure” to the broader crypto market which is undesirable to those who are just interested in Bitcoin.