I think there are few different things at play here:

• You're in your thirties - the novelty has simply worn off a lot of games. When you're new to the medium, everything is new to you and you're a lot more likely to feel excited about things that other people may already be tired of
• Games are a little more homogenised nowadays. There are certain a lot of fantastic games out there - particularly in the indie and AA space - but a lot of bigger titles tend to lean into catch-all design principles that have been proven to work. When so much money is being invested into AAA games, they can't afford to take risks (and innovation is a risk).
• You may be depressed or just burnt out on gaming. You might not feel depressed in general, but not feeling excited about things you feel you should be excited about is one of the earlier signs of depression. And being burnt out isn't all that uncommon either; video games have a huge amount of variety, but you still need to have other hobbies outside of them. If you're not enjoying any games, there's nothing wrong with just taking a break and focusing on other hobbies.