Solos have dropped out of popular music or A&R has stopped supporting/promoting bands that do solo.
In the late 90's-00's Tom Morello kept them in prominence but either owing to cultural shifts in popular music or a lack of talent you're more likely to hear that sort of stuff watered down but in country-rap pop rock music now
They're still there in driven hard rock, metal etc depending on the genre.
not much of an indie music scene out here save for balladeers and such and piano singers and party bands and those don't tend to single anyone out unless they're doing covers.
And these days although you can marvel at someone's proficiency in playing such solos, They rarely evince anything interesting on their own. Lots of second generation copy cat stuff.
Can't say I've been to many punk shows so i couldn't tell you about that. But in a very limited scope pertaining to American/British pop music, it's not something that's popular right now
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