Xdebug stopped working with Visual Studio

So it looks like maybe the lsof didn’t reveal it because it’s running on a docker internal address/namespace, so you might have to find it from within the context of the devkinsta_fpm container shell:

docker exec devkinsta_fpm -c "lsof \| grep :900"

Could you try adjusting the PHP xdebug configuration:

xdebug.mode=develop,debug
xdebug.client_host=host.docker.internal

Source: Xdebug Support: PHP debugging - #30 by nemanjac

If that doesn’t work, try these solutions instead, thinking it’s an xdebug options issue at play here: