If the 80% of salary from the government came with strings attached (i.e. "basic job", not UBI "basic income"), this wouldn't be a problem (provided that either

If the 80% of salary from the government came with strings attached (i.e. "basic job", not UBI "basic income"), this wouldn't be a problem (provided that either masks are provided as well, or work is organized so that social distancing is maintained).