Thank you for feedback Medico, will order the headset with frame then. It will have to be replaced at some point so if it holds for a season it will be enough for the price paid.
That's a fair question. I generally have similar thoughts in relation to contact points in bicycle and especially front ones as broken saddle may not do much damage, but broken handlebar on the jump might cause serious issues. I would say that based on research in this and other MTB forums, as well as my own (although quite limited and not with handlebars) experience, if you buy from a reputable (ie present for the market for a long time, lots of feedback, etc) source it should be OK. Although, again, I am 85kgs so what is ok for 20kgs lighter person might not be for me. Then, generally, if the item costs more, the quality is also better (not always), so buying from aliexpress should not be just taking a random cheap carbon piece. The handlebar choice is essentially aesthetically driven, rather than performance related, hence I cannot justify paying ~350e for original syncros - it does not give ANY performance benefit, just the look. So, I am taking a calculated risk to buy and try a contact piece from aliexpress. If I notice anything during initial riding that does not make me feel confident in the item, then I guess there will be a loss on investment. In terms of my riding, my terrain does not have almost any jumps, so mostly it's just rutty, slightly hilly forest. The specific handlebar is this
https://www.aliexpress.com/item/1005003652531612.html?spm=a2g0o.order_list.order_list_main.12.21ef1802mtK1GP and it has a significant amount of feedback over past half a year.