I did put "stuck" in quotes...
It is just weird that it just started with recent versions where it gets "stuck" at 50% for hours, and hours. (I can't imagine that it actually takes ~12 hours to check the signatures.) It has always unpacked and verified signatures, but it never took this long.
You used to be able to go from nothing, to downloading, to unpacking, to signature verification, to install, to done in less than 2 hours. That no longer is the case. Something different is happening at 50% now.
edit: OK, I have to take some of that back, the 2022.24.5 to 2022.24.6 upgrade took ~20 minutes to get to 50%, then took about an hour to continue. (But it did take about 12 hours for the upgrade to 2022.24.5 to get past 50%.)