That last screen shot that you posted is very important.

A person wants to control replication of the virus in that first stage. If the first stage is controlled the second and third stage will give very little problem because there is little viral remnant to cause the later problems.

One reason why there has been such push back of "that medicine does not work for covid" is anything that excels in cutting down viral replication is most often given too late in a hospital stay. For viral inhibition to work it has to be done when the virus is replicating itself. That is in the first stage. If given in the second or third stage, the stages most likely to be admitted as a hospital patient, it is generally too late for it to do much good.

Early treatment is the key. If wife or I start getting a stuffy or runny nose or a sore throat, we treat. Don't care if it is covid or just a cold. Catching and treating covid early before a person is very sick it the key to defeating it. If a person is already pretty sick, they are already in the second or third stage and it not only becomes more difficult, but the treatment needs of focus on inflammation rather than virus replication. So the selection/timing of the drugs changes.