Notable single-camera network comedies in the post-Seinfeld/Friends era...
- Scrubs (2001-2009)
- Arrested Development (2003-2006, 2013, 2018, 2019)
- The Office (2005-2013)
- 30 Rock (2006-2013)
- Community (2009-2015)
- Modern Family (2009-2020)
- Parks and Recreation (2009-2015)
- New Girl (2011-2017)
- Brooklyn Nine-Nine (2013-????)
- The Goldbergs (2013-????)
- The Good Place (2016-2020)
Notable cable/streaming comedies in the post-Seinfeld/Friends era...
- Sex and the City (1998-2004)
- Curb Your Enthusiasm (2000-????)
- Entourage (2004-2011)
- It's Always Sunny in Philadelphia (2005-????)
- Eastbound & Down (2009-2013)
- The League (2009-2015)
- Girls (2012-2016)
- Veep (2012-2019)
- Silicon Valley (2014-2019)
- Love (2016-2018)
- Vice Principals (2016-2018)
- Barry (2018-????)
- The Righteous Gemstones (2019-????)
- What We Do in the Shadows (2019-????)
- Dave (2020-????)
So, basically, the last "notable" single-cam network comedy - The Good Place - premiered over four years ago, in 2016, and it was only semi-popular at that. However, it has since ended, and of that group, only The Goldbergs and Brooklyn Nine-Nine remain, both of which premiered in 2013. In other words, it's been over seven years since a truly popular, single-cam network comedy premiered.
Cable comedies are in a bit better shape, with six notable ones remaining - Curb, Sunny, Barry, Gemstones, Shadows, and Dave. Technically, Master of None (2015-2017) and Atlanta (2016-????) should be part of the cable/streaming second list, and of those two Atlanta still remains, but I don't really consider either true comedies, though maybe I should.
I can't think of a single streaming comedy I watch, with Love on Netflix being the last - and only (?) - one. Either way, considering the current landscape - across network, cable, and streaming - you'd think we'd have at least a few more popular, half-hour comedies to choose from, considering what's come before, along with the sheer amount of content available today.