Depends where you look, but in the sci-fi/fantasy groups I'm in, she's pretty viciously derided, as is anyone who sticks their head above the parapet to support her (or even, "I don't agree with her, but I separate the books from the author").
It's all very much she's a hag that's using her wealth to punch down/wants to see a trans people genocide, bullying asexuals, is a racist bigot, and if you buy any HP/Strike books/merch/media, you're basically supporting the murder of trans people, etc
You can't argue that her argument is not that anyone should be killed, but maybe that penises shouldn't be forced into women only spaces. You can't point out that she's used vast quantities of her wealth supporting feminist causes (victims of domestic violence, single mothers, rape survivors, etc). You can't point out that her world view is shaped by her experience of male violence. As far as some people are concerned, she's up there with Andrew Tate. Or Hitler.
However, I don't think the vast majority of people feel that way. I think a lot of people are slightly bemused about the recent court judgement, having thought it was fairly obvious that trans people are never going to be biologically the same as the sex they're wanting to identify into.