I have not seen a change in the two capitals I see regularly.

Visit Brussels, Frankfurt, Paris, Cologne, Rome...

So where exactly is Frankfurt "full" with encampments?

Banhovsviertel but not only. You really want to say the city doesn't have a massive homelessness issue?

Your claim wasn't that there are homelessness issues (which there are and they got worse over the last decade at least) - you alleged cities full of tents and other encampments. And the Bahnhofsviertel always had some presence - sometimes more, sometimes less.

Homelessness is out of control in the US and elsewhere too.

The real question is whether there was a statistically significant difference compared to previous years ceteris paribus (same location, same time of year, etc.).

Also the influx of various refugees over the years should be taken into account.

Anecdotal evidence that there is homelessness does not automatically mean doom and gloom for a country.

Mostly fresh migrants who believed that Europe has a certain living standard for everyone and spent ungodly money to get trafficked from Turkey or Libya.

I have seen none of that, and I live in one of the largest European cities. Andreii, why are you spreading misinformation?

I live in Brussels. I walk/run throughout the city every day. There's tents next to the rail station, there's tents next to large supermarkets, next to parks... everywhere. 3 years ago that was not the case. Metro stations are also overwhelmed with people passed out on heroin or whatever drugs they use. The difference is more than noticeable.

I visited Frankfurt just 1 month ago and was shocked to see the situation being even worse.

I believe a lot of it is a post-effect of covid where some people fell through the craks and now are just lost to drugs or other addictions.