Questions & Answers about Quer ficar em casa ou sair?
Where is the word for "you" in Quer ficar?
Why are ficar and sair not conjugated?
How does the word ou (or) work with the verbs here?
The conjunction ou connects your two choices: ficar (to stay) and sair (to go out). Because both actions rely on the same main verb (quer), they both stay in the infinitive form. You don't need to repeat the word quer after ou.
Why does it say em casa instead of na casa?
When talking about being "at home" (meaning your own home), Portuguese just uses the preposition em (in/at) without adding "the" (which would make it na). If you said na casa, it would sound like you are talking about being inside a specific physical building rather than the everyday concept of being "at home".