shut-in; stay-at-home; recluse; (lit.) security officer of one's own home
confinement to one's home; being made to stay at home
staying at home (to prevent the spread of illness, etc.); self-quarantine; self-isolation; being on furlough; being temporarily laid off
studying at home; home study; homeschooling
staying at home all day (without employment); (lit.) guarding one's home
giving birth at home; home delivery; home birth
behind one's home; one's backyard
drinking at home (as opposed to going out)
recording audio at home (as opposed to in a studio)
person self-quarantining at home
person managing their symptoms (e.g. of a mild case of COVID-19) at home; person recuperating at home