You are right the pandemic brought so many changes, as most physical activities were moved online, but those that could not move online such as football were negatively affected by the coronavirus. This resulted in a delay of many leagues in the last two seasons, but other gambling activities such as casino base games witnessed high traffic and this have lead to.more development in the gambling industry.
Many gamblers moved online as at the time it was the only way to keep gambling as casinos were closed like a great deal of businesses around the world, however this does not mean those casinos went online, gamblers played at online casinos which were already established while casinos which had a physical presence most likely failed to move their operations online, and most likely a great number of them went bankrupt due to the pandemic.