TabFreezingEnabled

Controls whether Google Chrome can freeze tabs that have been in the background for at least 5 minutes. If the policy is set to true, tabs that have been in the background for at least 5 minutes may be frozen. Tab freezing reduces CPU, battery and memory usage. Google Chrome uses heuristics to avoid freezing tabs that do useful work in the background (e.g. display notifications, play sound, stream video). Web developers can also opt-out their site from freezing (https://chromium.googlesource.com/chromium/src/+/HEAD/chrome/browser/performance_manager/docs/freezing_opt_out_opt_in.md). If the policy is set to false, no tabs will be frozen.