Most tourists still pick one of the shitty providers available at the airport or train station and go with that. Some of them provide a faster verification do you can walk out having internet, in Austria if you buy internet at a supermarket (it's uncomplicated there) it can take a few hours to verify.
Or Italy, if you arrive in Venedig you find ads for internet packages everywhere. I actually needed to go to the mainland to buy a a normal SIM. As no one on the island acknowledged the cheaper packages available.
My point is, it's complicated
Source: I've spent months (if not years) with my laptop In Europe and Asia and internet always was the #1 priority. I also do not know if things are better today
They have short-term or no-contract options at low prices, and often have a website in English.
Also what is short? In Austria I get a new prepaid for every few days I stay (because uncomplicated and cheap). In the Netherlands libera was the only real option even thought I was there for 2 months.
Edit:// I spent over 200€ on prepaid internet that 2 months I was in the Netherlands. A always cancel contract would have costed I think about 20$ a month for unlimited (and way faster) internet