I’m in Europe and I once asked the support and they said I cannot connect without at least using their router as a modem (in bridge mode).

So I could use my own router for my home network but would have to connect it to their provided one.

I was curious if there was some hack to make it work without their shitty provided one.

Can you elaborate? My ISP forces me to use their modem.

This. I use IntelliJ for Java, Kotlin, typescript, Python, HTML etc… it just does everything and does it better than other IDEs.