I'm not a gearhead, haven't tried Gotamas or any other recent model skis, but would advise to get a ski that is suited to you. Your size, skill level, style, preferred terrain, expected conditions, etc. My belief is that these factors and other preferences, stiff/soft, wide/narrow, shaped/straight/reverse sidecut matter more than freeheel/fixed in ski choice. For telemark, a slightly softer flex is a good idea because the skis are more evenly weighted in a telemark turn, but beyond that chose a ski the same way you would for alpine.
I wouldn't worry about tip width. Keeping some lateral separation between your skis maybe difficult when learning telemark, but the difference between a fat tip and a narrow one isn't that great. Carving skis have 120mm tip, Gotamas are only 1/2 inch wider.
Traditionally, skiers learn to ski on groomed terrain. If you want to develop your telemarking on groomers, go for a groomer type ski. If you are ready for off-piste and have access, go fatter.