There is a separate verification tool I've used that lets me confirm who I voted for, and that the server has registered my vote. Also, like in elections in other places, every election has observers take part. OSCE regularly send their lot, their report on the last parliamentary election can be read here https://odihr.osce.org/odihr/elections/estonia/551179.

So there is a tool that remembers who you voted for. That's great to convince your bully that you actually did what they told you.

However, how do you know you're one of the X votes displayed in the final tally ?