How about UEFA Nations League ??
UEFA Nations League is maybe one of the worst and most boring international competitions in the world that nobody watches, and for me it's even harder to bet on those matches.
Season in domestic leagues just finished, we have world cup coming and now players have to waste time on this

Comparing apples to oranges really, there is a big difference between domestic and international. You are measuring the popularity with a crooked ruler, I would say. Of course your domestic sport will always be more watch-worthy to you for national and social reasons. You will not find the same interest in international sports unless your nation is at the time, very involved.