+1 for:
Either get track or backcountry gear, just like bikes, a road bike for the road, MTB for the trails. Skiing a ‘touring’ ski on the tracks is slow. It’s pleasant, it’s walking on snow. This ‘shuffling’ is fun, I do it all the time in the backcountry.
But, it doesn’t give you the kinestetic joy good glide does.
Note that if you want to ski in set tracks you need to keep the tip under 60mm. Do NOT get metal edges if you want to use them on the trails. Metal edges are for steeps, rocks, and actual (river)ice.
A 60mm tip touring ski can be nice for some relaxed ‘walking’ in the groomed trails and easy ungroomed skiing.
If she wants to enjoy the feeling of SKIING, get her some decent performance skis. Again, the difference is like road bike vs hybrid bike. Those Salomon skis are in the ‘leasure’ Category at Salomon, so more akin to a hybrid bike.
Height is not a very big deal in XC skis. Mostly it’s weight and skiing style.
I have never tried the combination boots, but if you do, make sure the sole and ankle are flexible enough for good classic technique.
Get good, higher end boots. Not the cheapest model. Classic Skis, decent used ones or a nice mid level option is fine, no need to spend huge bucks to get the very newest and lightest. If she wants to SKI, not shuffle, get her some classic lessons too. Good classic technique is every bit as hard as good skateski technique.
Skate skiing is great fun and good if there’s no fresh snow. If there’s fresh snow, classic is better. For a beginner, skating is a 100% max effort every minute, until you develop some decent technique. Your call whether she will like that or not.
Classic skiing, even beginners can take it easy if they want to.
Good thing about skateskiing for an alpine skier, is that the best skate skiing conditions are super firm, almost icy,, while the alpine is best in fresh powder.
Classic is best of the three when it’s brutally cold, since it’s warmer than alpine and the lack of glide on cold snow is less of a dealbreaker on classic gear than skate gear.