At the end of the day, I guess this is it. A teenager today is exposed to a very different musical environment to what I would have had in the late 00s/early 10s, although even then, I suspect that late 90s/early 00s was less radical a change to the period I suggested compared to what it's like now.
Rise Against played in the same 'venue' in Prague as The Offspring 2 years ago and they headlined...
KoL - they're available but I hope not, so boring. Also, I believe they've never played in Czechia.
Sex Pistols - it depends which day they are playing at Download but is it headline worthy?
Aurora - unavailable, she's doing multiple shows in Norway over that weekend.
Roxette - you serious? 😅
Gir In Red and King Gizzard - nowhere near big enough...
Had a look and it's an "almost but not quite" scenario - all 3 of Clairo, Beabadoobee and Phoebe played Glasto's Woodsies stage that year but were on different days.