No (what I’m fairly sure is being referred to is that) there are (very recent) significant additional barriers to trade between EU member states, which disproportionately impact small businesses.
I don't think so. The most natural reading of OP's post is that they are outside Europe. You wouldn't say "I can't imagine how much this affects small business in Europe" if you were yourself running a small business in Europe.
Ok, but their post talks about making a product in small volumes. It doesn't explicitly say that it's a small business, but together with the first person singular language, that's definitely the impression given.
If I made millions, sure, pay someone to figure it out.
But I was not going to waste design time early on.
I can't imagine how much this affects small business in Europe.