Are there differences between ISPs (Swisscom, UPC, …) and their routers/modems when it comes to port-forwarding, IP management and so on?
Does anyone have previous experiences and suggestions, for which ISP I should go?
Edit for update 11.2023: Init7 with the 777.- a year plan has the option to add a 20.-/month extra for a own public, static IPv4. This was too expensive for me, i gave up and went with the cheap Yallo something, which has the whole GC NAT shenanigans. I now hope for better ipv6 support in the comming years… Mostly by the fucking shit mobile shitproviders 😡😡, mobile data by all isps in switzerand has NO ipv6 support
Note that since recently some cheaper providers (especially UPC and its sub brands) have switched to CGNAT, which does not support port fowarding as your modem does not get its own IP assigned. I have been always happy with iWay, Init7 and Green.ch. they are only slightly more expensive (except Init7) but their service is awesome and super nerdy :)