The experimental side of ham radio was never affected, as modern digital modes use low-symbol-rate multicarrier modulation, never high symbol rate bilevel codes, due to multipath effects on short symbols.
This limits total data rate in a way the baud limit never did.
More efficient digital modes never used high baud rates, though. Often they used surprisingly low baud rates.
As an example, 4GLTE has a maximum baud rate of 15ksym/s