I recently came across a new platform while browsing, and I was surprised by how smooth and fast the overall experience feels compared to others I've tried before, especially in terms of loading speed and usability
https://blog.librescrum.org/m889dz069w1/889d-reference
http://prose.astral.camp/jljl99bxwg00/jljl99-reference
https://wiwecns5.kc2g.com/w45d32qv1k/45d-reference