For what it’s worth: (only if you know what JSFX scripts are)
I tried running YSFX (version 0.0.26, Linux, Tags · JoepVanlier/ysfx · GitHub) on Ardour 8.10 (Linux) and I got some random JSFX scripts up and running (Limited number only tested)
BTW: R**per seems to have built-in support for JSFX DSP scripts