Then make it better. It's opensource ;)
https://blog.trailofbits.com/2016/12/12/meet-algo-the-vpn-th...
You still trust the cloud providers' upstream. In case of UK providers, the GCHQ sniffs upstream and ingress, so they can correlate traffic. Same for DE (BND, MAD) and basically all countries.
No, but you're making your traffic stick out and yourself a target for dragnet surveillance. The constant flow "packet in, other packet out" is easy to pick up for snoops, compared to "just packets out" from your home ISP.
What would I gain in ease-of-use, performance, or security by switching to Algo?