Be careful though, as many companies also flag VPN usage as suspicious by default.
If you’re just looking to hide from your employer, you might want to consider self-hosting a VPN/HTTPS proxy server, or, for more technical users, self-host a VPN/proxy server that forwards the incoming traffic through a commercial VPN. If you use a commercial cloud hosting platform, all they can really see in that case is that you’re accessing, say, a Digitalocean server, which can also be for any number of benigin websites. Make sure you have your VPN client set to connect over port 443 (the normal HTTPS port) and not the official OpenVPN or Wireguard port, as well as use the networking interlock (internet killswitch) feature that disables internet access without the VPN connection active.
Still not perfect obviously, but I imagine better than using a well-known commercial VPN directly. Or, you can always just use cellular data/hotspot for personal browsing and completely prevent your employer from seeing it.