I tried to setup PrimeFlex (3.0.1) for PrimeFaces (10.0.0). I used css files as provided in dist folder of PrimeFlex repo. Also I followed the instructions give
imodeljs
abuse
gcc10
hft
opengl-4
rack-test
dramatiq
iexpress
google-identity
wasabi-hot-cloud-storage
lazy-initialization
nested-urls
pybricks-micropython
ribbon-control
medium.com
codehighlighter
angular-token
phpdebugbar
aws-codebuild
jquery-datatables
mailing
skype-bots
envdte
timsort
rosalind
poi-5.1
zeek
async-ctp
applinks
cps