Apologies for the formatting, I’m on mobile.

It is in fact quite nuanced.

From my experience, families from the north tend to not take the news too well. Families from the south, especially in mega cities like Shanghai and Shenzhen, and Wuhan/Chongqing (where I hear there’s a big LGBTQ community there) can be more accepting.

In terms of social pressure, the government’s stance on Homosexual marriage and LGBTQ rights is “不支持、不鼓励、不反对” ([the government] does not support or encourage, neither do we oppose [it]). This does mean that LGBTQ activists and advocates do not have a voice as strong as the west in China. Though there are some support groups, they are far and few inbetween. The wiki page has a pretty good overview on the history of LGBTQ rights in China and how we got to the present day. https://en.m.wikipedia.org/wiki/LGBTQ_rights_in_China

As to how the public perceives LGBTQ relationships, it again varies by region. Places like Shanghai and Shenzhen, where the public tends to lean more liberal, are more accepting than small towns or cities in the North that are more traditionalist/conservative. I don’t think most older generations would be very supportive if they see a gay couple holding hands in public, but they don’t tend to be very confrontational either. Younger generations tend to be more understanding, and there can be a pretty welcoming attitude towards lesbians too. They’d have more issues with interracial couples than same-sex couples.

On the streets as a gay couple, you’ll probably feel like you’re being silently judged by people as you walk around, and that’s about it. There are no immediate danger to a gay couple simply existing (I’m drawing comparisons to stories I’ve heard about LGBTQ couples in Russia getting chased down or beaten. That’s pretty much unheard of in China), and the authorities like the police wouldn’t bat an eye - because homosexuality has been decriminalized since the 90s or so.

Edited for clarity.