This is not on the public development roadmap, and to offer my candid opinion, a feature request that has accumulated only 8 votes over almost 3 years is unlikely to get much attention from Bitwarden in the foreseeable future.
As a work-around, you could set up an organization, get yourself a second Bitwarden account, place the financial accounts in a collection that is shared with this second account, and then configure Emergency Access so that your next-of-kin can access (or take over) the second account if you are incapacitated. You would need to pay the $10 Premium subscription fee for the second account to set up Emergency Access, but you can let the subscription lapse after the first year (Emergency Access that has already been configured will continue to work).