I have long, skinny fingers and very poor circulation. I certainly qualify for COLD hands.
The most popular brand here is Watson. They make gloves for all kinds of applications.
I do not know how many different pairs I own. "Ropers" of deer skin that you can cinch up with your teeth.
You name it. I like unlined leather gloves up to 20+C temps. Tedious garden tasks ( pruning grape vines).
Best?
Down to -5C, leather gloves with a woven plush pile inner lining glove. Fuzzy and warm. Any fuzzy liner traps air and heat.
Can you find gloves with extra liners so one set can dry while she wears the other?
Colder than that, Tolko snowmobile gloves. Big and thick and not motorcycle gloves. I doubt you ride in -20C blizzards.
Nice at -25C with excellent manual dexterity. That's the fekking day to swap out the main battery in my Suburban.
I bought Gore-Tex lined gloves. My hands sweated and got so cold in winter, the gloves were a liability.
Into the bin they went. Never again.
If I get stuck outside but no work, I have big "over-mittens" of leather. They are plain moosehide leather
and they have an 8" cuff to cover the ends of my coat sleeves. They are meant to go over gloves in case you have
to do fiddly stuff. The First Nations Dene' mittens often have the most wonderfiu; bead work on them.
Watch some video of the mushers in the #1 sled event, the Iditirod. Look at their hands.
I believe that you get what you pay for. Outdoors with manual dexterity at stake, buy good stuff.
Indoors for wood carving, I wear cloth lined leather gloves (3 pairs/$5) for heat, vibration and for clean.
Safety is rarely ever an issue in my carving style.