0201 components are hard to handle.
for instance, if you unsolder a 0201 resitor, and try to install a new value to those pads, you often find the solder not wetting, or the pads lifting from the solder iron heat.
one size bigger makes a big difference.
this is not an issue if you NEVER replace any parts, like in a mass produced product.
but in a product that has a small volume production, you should try to use bigger parts. Or at least ONLY use the 0201 part size were it is absolutely necessary considering parasitic inductance and capacitance.
So, if you have a Pi attenuator at 20 GHz, sure, use 0201 size. If you have a bias resistor to limit current, do NOT try using such a tiny part there!