There is also the ICRC-25 (draft) which will allow (as far as I understand it) the NNS Dapp, Oisy, and alike to work like extension wallets with one account across multiple apps. The DeFi dapp will open a window to the wallet dapp, which will prompt the user to sign a transaction.
[ICRC/ICRCs/ICRC-25 at main · dfinity/ICRC · GitHub]
This will eliminate the need to copy/paste accounts and go around dapps sending funds. You can have a 'deposit from NNS dapp, Oisy, etc" and the UI shouldn’t allow you to fetch tokens it doesn’t support.