The provision of healthcare, UBI and the like is itself incompatible with "very minimal" government - each of those would involve government control over a non-trivial fraction of GDP. I'm not saying that these things aren't worth doing; some of them may well be. We should be mindful of the costs, however.

For that matter, anarchist thought hasn't historically shown much awareness wrt. the importance of, e.g. social capital provision, as enabled by voluntary "grassroots" institutions like churches and community clubs, as something that's incredibly effective at promoting reasonable, pro-social values and behaviors. (Some of these institutions necessarily involve various sorts of hierarchy and ranking, such that, e.g. a Scout Guide would rank higher than a newcomer Scout. Many anarchists would intuitively dismiss any such hierarchy as inherently coercive - despite the entirely voluntary character of these organizations.)