Bhibb It's on WPA2 not WPA3.
I wish I could be more helpful, but I'm not an expert in this area. I do know that there is -- or was -- a protocol called WPA2/WPA3 Mixed. It might be that the device is reporting that it supports WPA3, but also allows WPA2 devices to connect. I think that's unlikely to be true in your case, but it's the best I can do.
I'd also be curious about the 2.5 GHz speed it indicates. The reported 144 Mbps is probably a theoretical value based on that frequency, and not necessarily an actual value. And to the best of my knowledge, it should be 2.4 MHz, not 2.5 MHz, although that may not mean anything. 2.4 GHz and 5 GHz are the only two speeds for Wi-Fi that I'm familiar with (my router supports both).
If you're continuing to have issues with that card, I think you have the right idea. If I were you, and were able to, I'd replace the card with something newer and better. The best idea might be ask around the forum for recommendations for a card that works well with Solus.
