Troubleshooting a wifi card on laptop

It worked till three hours ago, and then simply stopped. While i was digging and tryng to remember what the hell i used to configure network, i see that the signal is horrible. I saw it around 0/70 and -110, and when i finally manage to make it scan with iwctl , it jumps between some 30 and 100%.

Is it a dead antenna / faulty card and how do i start to troubleshoot it ? Which adapters are avalible that will work out of the box or with minimum pain?