The best thing is to use a different device, period.
Since the company is lord and master over the device, in theory, they can see anything you’re doing.
Maybe not decrypting wireguard traffic in practice, but still see that you’re doing non-official things on the device that are probably not allowed. They might think you’re a whistleblower or a corporate spy or something.
I have no idea where you work, but if they install a CA they’re probably have some kind of monitoring to see what programs are installed/running.
If the company CA is all you’re worried about, running a browser that uses its own CA list should be enough.
Exactly, if we do a back of the napkin calculation:
Bitcoin
Users
There are 200 million bitcoin wallets, let’s be generous and say those are all owned by unique individuals.
Total energy consumption
Bitcoin used about 114 TWh in 2021[1]
Bitcoin currently uses about 150 TWh annually
Energy consumption per user
Banking system
Users
There are over 8 billion people on the planet today, let’s assume 4 billion of them have access to the global banking system.
Total energy consumption
The global banking system used an estimated 264 TWh in 2021[1]
If we assume the same consumption increase rate for banking, that’s about 348 TWh/year currently.
Energy consumption per user
With these numbers, bitcoin uses almost 10x the energy per user annually.
There are of course a myriad of things one can argue over whether it makes a fair comparison, none of which I feel like arguing, since this is just a really simple estimate with a lot of assumptions.
1: I used the numbers in this article uncritically, if you have better numbers you can run your own calculations.