Which of the following options are correct, about following observations?

Here,

${\mathrm{NOF}}_3\left(\mathrm{I}\right),{ \mathrm{NOMe}}_3\left(\mathrm{II}\right)$

$\mathrm{N}-\mathrm{O}$ bond of (I) has greater%  s-character than (II)

Hence, $x<y$ (Bond angle)

Also, $b>a;P>Q;z<w$ (because of large size of Me group).