So as you know there are several different electoral systems which effectively transform into very different political outcomes in a democracy. To keep it simple for the purpose of the thread, there are several, four of the most popular ones can be summarized as:

Majoritarian single constituency/FPTP (first-past-the-post) = Common in Anglo countries like the US, UK, Canada etc. Basically one candidate wins per constituency with the most amount of votes = the rest do not count. Which is why there are two party systems in the US, UK, because smaller parties are never able to beat the major party candidates in any given constituency so their share of votes does not count.

Proportional representation = Common in continental European democracies like the Netherlands, Poland, Austria, entire Scandinavia, Czech Republic, entire Balkans, Spain and Portugal. Multiple party candidates (proportionally to the vote cast on them) can win representation in the respective Congress/Parliament etc, so smaller party votes are not lost. This often leads to coalition-governments.

Two round majoritarian = France is the only one that I can remember of the top of my head. Here it's proportional but then the winning parties are narrowed down and a second round is cast to get the clear majority = as Macron's movement did in France.

Mixed proportional system = like in Germany, proportional selection of successful constituency candidates and nationwide party list. First vote is for the local constituency candidate like in FPTP, and the second vote is for nationwide party candidates selected via proportional representation.

There are of course others like STV in Ireland = single transferable vote, you can vote for multi candidates at once etc.

Which one do you prefer?