I like the idea of a separate time keeper or game clock. I’m sure they could come up with a set of rules for when clock stops and starts and game at ends at 90 mins regardless of what’s happening(just like it used to be) and the clock should be available for all to see. (Perhaps just having the clock displayed for all to see might be albthats required?
clock stops for below and starts again when play resumes, maybe not a perfect List but simple and captures the vast majority of the time taken up when the game is actually stopped
injury, sub, goal, var review,