thanks for your suggestion, I’ll take a look on that. Meanwhile I found a (maybe temporary) solution for me, also on the “dark side”, via Aurora Store: “prisma”.
It’s a german tv program magazine, that you can find in a couple of local newspapers as a weekly
give-away. I used to have it as long as I had a subscription to the “Kölner Stadt-Anzeiger”.
Fortunately the app has only 2 trackers, so far so good…