You ask me what to do to make v3 better?
Well then: Just switch back to v2. There is, in my opinion, almost no improvement for the customer. Instead, there is a bunch of annoying issues.
It seems that v3 is mostly targeted towards making more room to advertise for bunq. But I'm already using it and paying for it, as I was happy with the product. There is no need for that advertisement! And no, I'm not getting SuperGreen, I know charities where I can donate for tree planting and actually know that this happens in my area (and just by paying some money to them, there will be trees, no need to use a product to plant them).
The amount of space used for saved money, "saved co2", and "saved time" is just really useless, as these numbers are either wrong or dont't matter(I don't save money with bunq, I'm paying money to bunq it as it was more comfortable to use, I have ZeroFX with my german bank for 0€, and three weeks of saved time is just hillarious for opening an additional account). The number of cards I have is rarely changing and should therefore not be on the start view either.
In v2, when you were in the start view, there were three buttons on the top for those things one will most likely do in a bank app: Pay, Scan and Request. For making a payment in v3, I need to first select the account, then click on the universal "plus" button and select what I want to do from a long list.
The switch to dark mode only makes the UI really annoying for me. I know it's a matter of taste, and that's what bunq realized in v2, so users were able to choose and be happy with the UI. Lists were good for overview, tiles make it less obvious for me, especially as I was used to the order in the list.
Instagram integration and the whole "us" tab is completely useless for most bunqers.
Indeed, for me, bunq used to be probably the only bank where there was few room for improvement, because it was almost perfect. With v3, that drastically changed. If things don't improve in the next months, I'll probably move away from bunq.
To repeat it again: I think that going back to v2 is the best bunq could do in this situation!