It's indeed concerning and at least from my experience I would tend to believe it. During the pandemic (even before it already but the pandemic multiplied it) many people became more like what these articles describe. The youth or even younger people grew up in these times and naturally it will have a big influence on them.
Then again, Iam not surprised about it. They still think they are liberal and tolerant, but in reality only to what deserves to be in their liberal and tolerant world view. Actually being less liberal and tolerant is the new liberal. Or call it selective tolerance or whatever.
Sure, Indonesia always had its fair share of problems, but I would say the older generations were indeed more tolerant.