Also don't forget to leave out any of the packaging letters from the part number when searching or sending out requests. some places are smart enough to filter that out if your options are limited, and some are not.
I'm sure many of us have reached the same conclusion as TSMC and various bits of the press report, the current component shortages all point back at TI as being the primary bottleneck with LT/AD close behind. Only another 18months to go
yay!