If you're spending that much time in front of a screen, hiking isn't a trend, it's what you need. But not for mystical reasons or anything like that. The thing is, when you're stuck in repetitive tasks, your body becomes sedentary and your mind gets stuck in a loop. A three-hour hike resets that in a way no gym can because you also have to pay attention to the terrain, your breathing normalizes without you forcing it, and when you get home you sleep like you never have before.
The practical side: you don't need expensive gear or to train like an athlete. Start with short routes in your area, like two hours max, with good shoes just (but seriously, invest in decent boots, not old sneakers). What nobody's gonna tell you is to go on a weekday if you can, even if it's a holiday. Weekends get packed with people, crowded trails, complicated parking. The real benefit of hiking is the peace and quiet, so if you can avoid the crowds, do it.
At 32 is also when your body starts demanding movement if you haven't given it any for years. It's not like you suddenly become an athlete, but a sustained hike every couple weeks uphill and you notice it in your cardiovascular endurance, your mood, everything. So yeah, get on it, but don't push yourself with crazy paces. Look up a couple trails nearby on maps or allofmp, pick one for next weekend and you're set.