> German provider with 4 shared cores, 4GB of RAM, 120GB of SSD disk space, and a 1Gbit/sec internet connection
Where on earth did he find €4 VPS with these specs. For example Hetzner's cheapest VPS has 2 shared vCPU, 4 GB RAM, 40 GB NVME SSD.
The cheapest I found is https://contabo.com/en/vps/ but it still doesn't have 1 gb/s connection with that price.
Edit: typo
Be careful when comparing core counts across providers. Those ultra cheap providers are using servers that can be many generations old. They might also be heavily oversubscribed. 4 vCPU on one of the cheap providers could be slower than 2 vCPU or even 1 vCPU on a newer generation server. You really have to test or look at benchmarks.
If you have a RAM-constrained application where CPU and RAM speed are less of a priority, they can be great deals though.
Oracle Cloud gives you 4 oCPU (ARM), 24GB ram, 4Gb/s (10TB), 200GB NVMe SSD for free.
Although some people say it is difficult to get an instance nowadays. But it worked for me and I've been using it for more than 2 years now. Some say that free tier users sometimes get booted, that's why one should upgrade to a paid account.
buyvm used to have one (not with those specs) for like $5 a year with 256 MB I used to love buying one or two of those for simple stuff.
> now is a 4 euro per month VPS in Milano, Italy - 4 shared cores, 8 GB RAM and 75GB disk space.
He didn't - he found a better specced one in Italy for that price
there's €1 and €2 VPS too: https://www.strato.nl/server/vps-linux/ (not sure what the quality is but ¯\_(ツ)_/¯)
https://www.lowendbox.com/ is a popular source.