Could come in handy :) The days of having over 6% on a savings account are probably coming to an end soon, so it may come in handy for some that Trading212 for example (but also other brokers) offer a nice % interest when you have free funds with them, for example for DCA payments etc.
Trading212 currently CZK 6% and USD 5.1%.
It may be a little, but it's better than nothing :)