My answer is yes I will gladly use the lightning network on gambling if that is allowed, that will make my transaction fast with lesser fees. this will be a good development to see gambling using a lighting network to process player transactions.
Whenever we are going to make a deposit in a casino we see the options to spend less fee, one of them is to use other cryptocurrencies, such as trx, ada, among others, because we always want to pay less to use that money in the casino, however when we put money in BTC it is more difficult, both to leave an exchange and sometimes to enter a platform, there is always an associated fee that is considerable, however now with the price of BTC that is not so low it may be something that It doesn't stick so much, but in context if it has something of value, if BTC when it was worth almost $70k a BTC fee was quite strong, for my LN it is the perfect solution, especially for players who only use BTC.
Perhaps I will also note such an important point when using LN as the speed of transactions. When you play and need to urgently replenish the deposit, this is very important. Because your condition calls for it to be faster, faster.
But still, the use of altcoins, even with very fast transactions and low commissions, looks like something not quite necessary when you have bitcoin and the LN network is connected.
I think that LN will still be more actively implemented in the gambling industry.