where to buy popular mutual funds - SCB or KKP Dime!?

With the low interest rate I am considering in buying short term Thai govt bonds, as they give a better yield and is tax exempted than fixed deposits with the freedom to sell it and get your funds back the next working day. SCB has SCBTMF vs KKP CASH-E.

For my wife's retirement fund I am considering to add world stocks [ SCBWORLD vs KKP WORLD-E ] and global bonds [ SCBGLOB vs KKP BND-H-E ] to the portfolio. The latter is hedged against the Thai baht. It also seems that the KKP Save account gives a higher interest rate than SCB or Kbank.

Any preferences for either SCB or KKP, due to lower TCO, more reliable app, etc?

Or are they almost identical, so if I wanna profit from the low cost E class funds, I just have both SCB and KKP accounts, as these funds are limited to 1M baht per account.