Every now and again when thinking about suspension travel I get a ruler out and look at the difference between 120mm 130mm and 140mm.
It’s not a lot really! So I think it’s a lot more about geo and how the travel is delivered.
I am now on a 100mm hardtail after years of 150/160mm full suss bikes. The terrain I now ride is a little tamer due to moving to a different area, but I still ride and enjoy bigger days on the HT.
I will be getting a new full suss at some point as I have a dodgy back and the rear bounce helps on longer rocky days, but I will be looking at the shorter travel but still slack bikes, but wouldn’t avoid 140/150mm either.
Long way of saying that it’s more about the package than the travel.