The median time from onset to clinical recovery for mild cases is deemed as approximately 2 weeks. 3-6 weeks time is required for patients with severe or critical disease.
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https://www.webmd.com/lung/covid-recovery-overview#:~:text=Early%20research%20suggested%20that%20it,age%20and%20overall%20health.
2-3 weeks for mild to moderate cases, severe cases takes more time for complete recovery depending on so many factors.
On average, COVID-19 patients with mild symptoms may recover after two weeks, while those with more severe symptoms may recover after six weeks. Thus people recover from COVID-19 after 2 to 6 weeks.
New South Wales Australia: https://doi.org/10.1016/j.lanwpc.2021.100193
India: https://doi.org/10.1016/j.dsx.2020.07.004
Israel: https://doi.org/10.1016/j.jinf.2020.05.026
Pakistan: http://dx.doi.org/10.19045/bspab.2022.110026