Connected to WIFI but no Internet

Hello,

I've been having this issue for a long time now. My MacBook Pro (15-inch 2018, Big Sur) is connected to Wifi but internet doesn't work. I've noticed that this happens specifically when mac is restarted, shut down and etc. So if I don't want to lose connection, I have to not update any software or application and never shut down my mac.

I've tried multiple solutions posted here - Changing DNS, Renewing DHCP license, changing location but nothing works. Only solution I found was - flushing cache and any existing routes. So every time my Mac is restarted I have to go all through this over again through terminal.

Is there any solution that could solve this issue?

Thank you in advance !