The two different main types of online gaming are flash arcade games or a more complicated web based RPG game. Both are a really good thing to do to relax yourself and have fun which is essentially the same thing. Based on research, if you have more time it is usually better for you to get into a multi-player game.
Online Flash Arcade Games
These are good games that usually are on a site that has many of these flash games. Usually they are quick 10-20 minute games that you can play for just a short while. They are very entertaining and you can have lot of fun if you find a few good flash games on a arcade site. One thing that online flash games lag behind is that many of them do not save, so when you want to play again you will need to start all over again. To some people especially me it is a pain so i decide to never do that. Instead i choose to play games that i can come back to a few weeks later and start right at the place that i left off at.
Online Web Based RPG Games
Usually you will see only a few sites that are RPG games (https://lifehacker.com/the-surprising-benefits-of-role-playing-games-and-how-1684582789) yet they have a lot more features and different gaming unlike what you can find from the other sites and arcades. In these RPG games you can do a lot of different moves, learn different things and get better at different things. Many of the times you will start with a character or a castle and build upon that to become the best. While doing thing you can do many things to the other players that may be playing as well. Attack, loot, steal or kill them, it is all a part of the web based gaming that is provided. There are also many different modes with weapons or armor (e.g. https://ranktopten.com/fallout-4-power-armor-mods-14143 ) Some of these sites will even have competitions where they will pay people who win the top 3 prizes. It all depends on the different kinds of play.
Based on the different descriptions of the main two kinds of online gaming it is likely that many people would choose the web based online games. They require more work yet they have a higher result, of course in different situations people may want to just play a few minutes of a flash game and thus making it the better choice for some. Yet fact wise people will choose to play for these web based games.