No, it's not abandoned. He is working on it in his free time and when he feels like it.
He had some personal set backs in the past (like father dying), probably studying or a job alongside as well, so it's understandable that he has some off-time where the game is not the priority.
And who knows what people have to deal with during Covid ... job lay off's, working from home, not feeling like working on a hobby right now etc.
Plus the game is probably getting more complex and being a perfectionist on "your baby" probably doesn't help either.
That all can pile up in delays. No idea how to deal with it. He said himself that the delay is hurting him - probably patreons jumping off.
He is posting on his patreon page. None of the developers have the obligation to post on this pirate site here.
So, I'm sitting here patiently wishing to know what is going on behind the scenes (but I wont).
So, I'm waiting to get surprised one day ... (or maybe in 3 years, or not at all, who knows. Would be a shame though).
But I do wish, that a mod or admin or some automatism would flag games with long update cycles when there is no movement so people are warned and adjust their expectations.
E.g.:
6 months update cycle : tag "1/2 year updates"
<1 year : tag "long updates"
>1 year : tag "temporarily neglected"
>2 years : auto tag "abandoned"
(mile stones open for discussion)