When I made this post. Had not started. But managed to get xteve installed as docker container and running.
Got my IPTV playlist and epg in xteve. I have made a couple filters.
I have added the xteve instance to JF a d the guide is showing. It is showing the filtered group channels. Unfortunately they are all together. Not separated by groups.
I use rdtclient, Prowlarr, Radarr, Sonarr and Emby (considering the switch to JF). Because I am using rdtclient with RealDebrid, no VPN is required. Because I use Prowlarr I only have to use prowlarr to connect to rdtclient. Sonarr and Radarr use prowlarrs indexers and rdtclient connection. Simpler setup.
There is also another "combined" service like your mentioned one called Bobarr.