I can't help much with the graphical side of this, but regarding wifi and bluetooth, they're a combined chip in most computers so it's not uncommon to have an issue with both at the same time.
From your lshw output (thank you!) you have a Broadcom BCM43142 so it's not a surprise to have driver issues. Firstly, they're proprietary so often need to be manually installed by the user. Secondly, Broadcom drivers are often unsigned, thus cannot be used when booting with Secure Boot enabled, so I recommend disabling Secure Boot and reinstalling the driver.
sudo apt install firmware-b43-installer b43-fwcutter bcmwl-kernel-source
Source: wireless - BCM43142 WiFi adapter doesn't work on Ubuntu 20.04 - Ask Ubuntu
If that doesn't work, please see my guide on troubleshooting wifi that I wrote because wifi issues are a depressingly common topic with linux.