Some Google and found for example the following articles:
Debunked: Yes, the virus that causes Covid-19 has been isolated and photographed
https://www.thejournal.ie/debunked-covid-19-isolated-photographed-5342610-Feb2021/
The virus that causes COVID-19 has been isolated, and is the basis for the vaccines currently in development
https://www.reuters.com/article/uk-factcheck-isolated/fact-check-the-virus-that-causes-covid-19-has-been-isolated-and-is-the-basis-for-the-vaccines-currently-in-development-idUSKBN28E2SB
SARS-CoV-2, the virus that causes COVID-19, was isolated in the laboratory and is available for research by the scientific and medical community
https://www.cdc.gov/coronavirus/2019-ncov/lab/grows-virus-cell-culture.html