No. Check my previous comment – this is about hosting on your home ISP, and turning that on or off directly affected the blocking. There is no way to host a webserver through any commercial VPN service.

It seems crazy to me too, but I tested it numerous times. Closing port 80 and 443 stopped the blocks, and re-opening them started the blocks again.

From several years of experiencing it in person. Datadome was the worst and most consistent. It stopped the moment I switched my webserver onto an exotic port number (above 10,000).

Datadome sent me captchas at every domain they firewalled. After correctly solving, I would always be completely blocked:

(not my screenshot)

Here is a page listing some system requirements for Peertube. It says 4 cores and 4GB RAM for 1000 viewers, which some Raspberry Pi systems have.

Yes. However, hosting things from your home connection will make it difficult for you to visit many websites. Blocklists such as Datadome, Cloudflare, and F5 will give you endless captchas if they detect port 80 or port 443 open.