Some years ago I was helping a Wolverhampton BA student with LF, the University had the kit but no-one to show them how to use it. Every one including Foma themselves claim the reciprocity failure is severe, I did my own practical tests and found it was nothing like as bad as the datasheets.
However, there are some caveats. First I shoot Fomapan 100 & 200 at half box speed with reduced development, and like in you images they are daylight.
It's now often forgotten that Films have a Daylight and Tungsten speed, the Tungsten speed has been dropped for most film as Tungsten studio lighting is long gone. An exception is Ortho Plus.
So if shooting household tungsten lighting or warm LEDs we still need to add this as an exposure factor.
Ian