Here's a comparison of four Vanguard funds, with stock:bond ratios of 80:20, 60:40, 40:60, 20:80 respectively: https://totalrealreturns.com/s/VASGX,VSMGX,VSCGX,VASIX What I find interesting is that they are all experiencing significant and comparable drawdowns right now.
Here are treasury bonds with a comparison between duration: https://totalrealreturns.com/s/VFISX,VFITX,VUSTX
And here are corporate bonds with a comparison between duration: https://totalrealreturns.com/s/VFSTX,VFICX,VWESX
Even inflation-protected bonds (TIPS) are in trouble: https://totalrealreturns.com/s/VIPSX
So right now, bonds are not doing much to provide the short-term real wealth preservation that lets people take the 100% time exposure risk.