Loads of issues, majority of their features are completely missing and since nvidia are asshats that keep things proprietary a lot of it lacks equivalents that are of the same quality as their features.
The absolute biggest issue for me is Wayland support being complete crap on nvidia.
Because VC money has dried up. For a very long time tech companies have had investors throw them basically infinite amounts of money and have proceeded under the idea “we’ll figure out profitability later”, now that money is starting to stop coming in and they are panicking and trying to reach profitability in the shortest amount of time possible.