I get what you mean about social media stuff. I also despise it personally but I see it as a tool just like anything else. Just post something and encourage people who want updates to follow you. Right now, if anyone wants updates they have to follow you on itch and hope that you update things. If you had a central website of some sort then that might make it easier (promote your itch and not have to play by the rules of 'regular' social media.
It is the delicate balance of using social media as a platform to get the word out and hopefully make some money versus having social media end up using you as another user to sell advertising space via metrics and data.
It is a crutch though, just thought I'd throw it out there as a potential way for people to consider for marketing/promo purposes.
You make niche games so I'd say it may end up being that you get someone IRL you know (maybe family) to help you with the marketing stuff.