I guess they won't switch back because this is the new normal for us, COVID-19 will coexist with us but we're immuned to it already thanks to the vaccine (if we're fully vaccinated) that's why wearing a mask would be optional in the future. This pandemic made us realized some things, and that is there's a lot of opportunities online on how to earn money (if you're luck enough in gambling) but not just gambling of course.
People would stick to online gambling because it's less hassle for them and they can do it secretly from their families.
The trend of going online was clear long before the pandemic. The pandemic has only slightly accelerated this transition, in the modern world the share of information in consumption is becoming more and more and it is obvious that the most convenient way to disseminate information is online.
As for the virus, I am sure that in two years it will be treated like a flu - unpleasant, but not fatal. It will undoubtedly lose its infectiousness and lethality.
I share your way of thinking, the pandemic has led to more online jobs being developed and apart from that online casinos have been a great boom, in fact in the part of the state of the country where I reside, traditional casino players are trusting much more to enter to casinos, among which the most trending ones are bitcasino and stake, they have discovered it through some spots on the radio, I discovered it because on social networks and in Whats app groups they are actively talking about these sites.
Apart from this, those who have more money, do not hesitate to buy and play in Axie Infinity, and some players who were playing TIBIA before, are migrating to AXIE, I really believe that this is the boom in conjunction with casinos and houses of sports bets. As for the pandemic, I think it will take 4 years for the vaccine to come out that actually kills all 100% of the virus, for now the vaccines that have come out, for me represent tests or protective enzymes that the effect is not yet known long-term.