Yes, dwarf peas will benefit from any support you can give them. Click and Grow sells natural reed straws Natural Reed Straws - True support (10 pcs) – Click & Grow EU, and I’d recommend using any chopsticks or barbecue skewers you may have already at home.
Their stems can break under the heavy pods and foliage growing, that’s why it’s helpful to use the sticks from the start.