A lot of it has to do with the government regulating people's actions. Its mostly artificial so I doubt that it will stay as a long-time trend. Things will slowly but surely go back to how they were, so online gambling casinos as well as physical casinos should see this as a short setback. I think they would have been better prepared if the governments gave a few months warning before implementing further restrictions and lockdowns. Most people had no idea what the government was going to do next and it really messed up people's businesses
Even with the restriction made by government during the pandemic break that halted almost all gambling activities from taking place except for virtual, many of the casino operators and other gambling games inventors take the bold step forward in reaching out to the people by supplying them with releived materials during the pandemic lockdown while some other remain mute doing nothing, some government as well remain adamant while some shifted ground and will never be forgotten.