Hi and welcome to the forum!
Having both, I’d say :
- the protective case makes the phone feel much thicker, but also more comfortable, adding it to the fact it feels safer to carry around. But be aware of you use the processor a lot and the phone heats up, it might get distorted after a little while (this issue is covered by the guarantee though).
- the protective glass feels very good, soft in touch, and even better to filter the blue light, which feels slightly better for my eyes. However the screen reflections will look purple, if you choose this one. If you choose the privacy one, be aware it’s not perfect, people can still watch over your shoulder and from some angles, especially with a bright backlight.
Also, it’ll be more difficult to clean the front camera as it’ll be in a hole, but nothing a Q-tip can’t clean
That’s my two cents!