@John_Klein Welcome to the forum!
First, that’s unfortunate how things turned out for you here.
As you indicated, it is recommended to always make an export first before you change something important with Bitwarden, like the master password, KDF etc.
I personally wouldn’t use something that may leave unencrypted traces of data somewhere, either…
BTW, your request has some overlap with this one: ✅ Add "view password" and pop up confirmation when changing master password (and there might be a tip for the next time)
Just FYI, that would mean a serious change in Bitwarden’s security architecture - and would make it far less secure - as part of Bitwarden’s security is, to not store the master password at all.
(–> Bitwarden Security Whitepaper | Bitwarden)
The Bitwarden master password is not only for “authentication” to the vault, but is also the main part of the encrypting/decrypting processes of the vault. To give up zero-knowledge, is no small request…