> It will tell you something like TQQQ is not a good long term hold, when it can be perfectly fine especially if you mix in with 60-20-20 with TQQQ-GDE-ZROZ, and DCA and annually rebalance.

As someone who long-term-holds TQQQ (I am lazy) it is pretty much true that holding TQQQ doesn't make sense. It is basically unambiguously better (ie. the risk-adjusted returns are higher) to directly hold options that construct the same amount of leverage over the time period you want to be leveraged over.