There has been a bug recently where the viewership count has increased and now several series be it webcomics or novels look like they have been seen way more, but not in reality.
Still is important to understand that most readers are silent ones, not many remember to give a like nor have much to say, be it feedback or even admiration, there is also the shy factor. While liking is easier than commenting, many readers still forget to hit the button.
Personally speaking I cannot talk about what are you doing "right" or "wrong" since I'm not interested in the premises presented. However I can point out a few things that I've noticed.
You are over-sharing, dumping episodes quite too fast or even having long bridges between episodes. Try to post once a week or two times a week but giving space between the updating days to don't overestimulate your audience, a different day for a different story so neither the notifications are considered too many or "annoying" as some followers tend to feel. And since you're working on three stories, it's important that they don't bump between one or another, be it their schedule, production or backlog.
The lenght by opening a few random episodes are fine, however since it seems that the there stories are linked somehow to one another, it'll be good for your audience to know how to differentiate one another properly or which one goes before which.
Because right now for me, the main reason why it's not making me interested to read none is because I don't know which is the first one or if I have to read the three simultaneusly in order to understand things from the other, which... seems a bit unorganized for me as well, the genres are really not my thing, by reading the Summaries it kind of feels like this is an isekai or very generic adventure, as well the covers kind of give mixed signals, since at first glance I thought the three works were Sci-Fi
I wish I could participate, but none of the series I work for (draw) have the Fantasy genre on them.