Mention of Montane, Haglofs, Fuera, and smocks.
Smocks
Pro - lighter, less to ruff on backpack hipbelt, pack smaller
Jackets
Pro - easier to get on/off.
I have no Haglofs experience but have Montane and Fuera. I did have a Rab windtop smock and I found smocks ultimatelt annoying and didn't replace when it worn.
Montane Litespeed
Pro - half the packed size of the Fuera
Con - sleeves so narrow I cannot get above the elbow.
Fuera Jacket
Pro - wired hood less noisy flappy. Sleeves can roll up above elbow. I find very breathable, more breathable than the Pertex in the Montane Litespeed, good smooth non-sticky feel next to skin.
Con - barrel chest, baggy, many inches excess armpit-waist. About twice the packed size of the Montane.
So I tend to use the Litespeed for:
- days which are generally warm with a possibility of cool, as adds insulation for little weight/size, for packing mostly.
I tend to use the Fuera jacket for:
- days which are cool and generally dry/drizzle to wear all day as I find the hood and pockets more comfortable and can keep the jacket on longer due to sleeves can roll up.
Based on the OP's context of use, it sounds like the Montane matches best, although I'd say give serious consideratoin to jackets rather than smock....