Yes, of course.
In the past ten years I’ve changed a wheel at the roadside twice. Both times it was dark and raining.
Bendy is the wrong word. Maybe ‘sway’ - a perception that it would rock from side to side. Not sure that it does but the absence of a wheel chock doesn’t help. (The 2CV I had many moons ago came with a perfectly shaped wooden chock as part of the toolkit, and the 2013 Defender has one too - mainly because the handbrake is on the propshaft and so the Landy can rock back and forward quite a way with the brake on).
And yes, as
@jrkitching says, loosen the wheel bolts before raising anything. I have a telescopic wheel nut wrench that effortlessly loosens them. I check with a torque wrench after refitting too - so they’re not over tight to start with.
The only issue I had one time was that the corrosive reaction between the steel hub and alloy wheel had ‘welded’ the two together. With every car, when I first get it I remove the wheels and apply a light smear of copper grease to the hub-wheel mating surfaces which prevents this happening. The car the wheel stuck to was only three days into my ownership (it was 9 months old) and I hadn’t got round to doing it.