I dunno ... the minute you turn you side development project or hobby into a paid product .. be it early access , patronage or whatever ... you owe it to customers (so not even most of us F95 dwellers) to at least communicate in some form , regularly , no matter what . Exceptions being stuff like health issues obviously , especially if you got no one to communicate on your behalf .
For other non Force Majeure issues , no excuses works . Sure you might not want to give private details , especially about your daily job , family and friends ... it's fair . But simple fairly regular check-ins like "hey the project is still alive" "there will be a delay for XX time" should happen . Of course yeah there would still be criticism and some toxicity even , but still keeping people in the loop is respectful enough (Unless of course you're just stringing people along with regular false updates and commitments , like some smartasses do) .
Whatever dark times you're in , whatever the struggles , or potential burnout , or even whatever fear and anxiety over dealing with customers , there is no way someone can tell me that a dev can't take the time of a commercial ad break to message something in months .