I'm not sure how old you are, but kids made a massive shift toward pills over other drugs about twenty-five years ago. It has been waning in the last few years. Use of narcotics other than heroin (e.g. Percocet, Vicodin, Oxy, etc.) was around 10% of high school seniors in 2004, and now it's down to around 1%. If you graduated high school in the last decade or prior to the turn of the century, your experience aligns somewhat with the numbers. If you're a millinial then you either didn't realize just how bad the pill popping was or Austin High was an outlier. My experience was much closer to yours, with most teens smoking weed and a handful of burnouts messing with slightly harder stuff - but I'm old. Pills weren't even considered an option back then. It was mostly just shitty weed. Eventually, pills became the first thing sought after, with everything else an afterthought. This peaked around fifteen years ago but started in the late 90s/early 2000s. And yes, that includes Xanax and Percocet.
Teen drug use of any kind is not "normal" now, if it ever was, depending on how you define normal. I agree with your sentiment there. Around 62% of 12th graders today don't use any drugs, including alcohol or nicotine. This is significantly better than the 35% of abstainers in the mid-nineties, for example (smoking and drinking were WAY higher at that time, which drives the numbers up, but illicit drug use was also significantly higher. The use of opiates other than heroin at that time was almost non-existent, especially compared to the era of 2000-2012. My pop psychology take is that millennials were too addled by anxiety to enjoy certain drugs, so weed, alcohol, etc. waned while anti-anxiety meds and narcotics exploded. This era also coincided with the explosion of pain pills and meds like Xanax floating around in parents' medicine cabinets. Access was easy, and the appeal of these types of drugs was peaking. Use of things like Delta 8 is currently growing among current teens, while pills have taken a nose dive. I assume access has a lot to do with that shift, as well. In any event, the use of any type of drugs has fluctuated between ~30% and ~50% for decades, with the trend significantly down at the moment. Most kids are not doing any drugs these days, but the number of kids popping hard pills was significant from around 2000-2015. The only era in the last fifty years with lower drug use among teens than right now was the late eighties and early nineties, when scare tactics were in full force and seemingly working to a degree (the AIDS crisis having a ton to do with it). The peak of adolescent drug use was the late 70's and early 80's, followed by a huge drop off and another significant spike in the mid nineties. It's been slowly petering out since then. The big difference is the types of substances being used. From 2000- to about 2012, pills like percocet and xanax were the drug of choice for many teens. After 2012 it started dwindling down to very little usage anymore, which is a good thing.
From the NIH (this survey has been conducted for almost fifty years). You can find data from every year, but the 2020 report is a good one if you want to avoid pandemic skewing.
"The percentage of adolescents reporting they used any illicit substances in 2023 continued to hold steady below the pre-pandemic levels reported in 2020, with 10.9% of eighth graders, 19.8% of 10th graders, and 31.2% of 12th graders reporting any illicit drug use in the past year, according to the latest results from the Monitoring the Future survey"