Segwit included a capacity increase, but fees are still so low that there's been little pressure to adopt it. I think we should let people adopt Segwit before pushing for more.
Letting people adopt Segwit isn't easy when a handful of largest entities in crypto aren't going to adopt it. Blockchain.com alone could contribute an easy 10% increase in Segwit adoption if they stop sucking off Roger and Jihan.
Rising fees
should take care of that problem eventually. They just haven't risen enough to drive users away from Blockchain.com and towards Segwit wallets. I interpret that as an indicator that fees are actually quite low -- too low to be discussing further block size increases yet.