I wonder if '20% time' but on some kind of 'approved' project might make sense? None of us 'fully agree' with the product features set. We all have 'that thing

I wonder if '20% time' but on some kind of 'approved' project might make sense? None of us 'fully agree' with the product features set. We all have 'that thing' we feel different about. I wonder if instead of 'work on whatever' - you can just 'work on something else, that you really want to' - but that has practical value. Like XYZ feature, or creating online training, or that researchy thing with the local Uni. So 'in line with company objectives' but still fun. Because frankly, Google has been rolling in surplus since day 1, they have all the money in the world, that's fundamentally a different economic space than companies who are on the line.