Am I the only one to whom this is shown as an empty post. Based on the post by @Unterlenkerfahrend I suppose it had something to do with the 1998 stage?
It was but they didn't even use the hard side of Madeleine that year. The only two times in recent history (with which I mean, since I'm watching the Tour) the south side was used was in 2013 with 3 climbs still to come after it, and 2020 with only one climb to come after it, but that climb being the Col de la Loze2010 stage was alright.