I am at ~80. Most are idling.
For me, the metric to jeep an eye on is the time spent by the kernel between system and user. If the time spent by in system rises it is the sign that the kernel is just switching of context instead of executing programs.
A safe access to my home infra/lab.
From my experience, the latency can be neglected in comparison of the latency of the connection of a mobile.
When the VPN has connexion issues, all the apps on my phone are waiting. Some reach timeout. But they recover all at once, without DNS issues, when the VPN comes back up.
When I move from network to network, from private wifi to public wifi, from country to country, … I am know I can try hotspots without checking if it’s from a malevolent entity (private hacker, stupide enterprises (who log for whatever reason that I go on website they don’tlike (pro-abortion, gaming, …), or anything else). If the VPN is up, I can. If it is down, I can’t but there’s no risk for me, just momentary annoyance.