It has been my experience that using FLRig with my IC-705 is preferred, rather than using the radio directly from WSJT-X.?
Yes I know that it's a different program, but I found that the radio returns to regular voice mode after closing FLRig, and when I used WSJT-X directly, I always had to go back through the settings to change everything back to normal. I normally use my Raspberry Pi4 when doing digital, but once in a while, I hook it up to my MacBook Air to run. I get the same thing, using FLRig, there are no settings that are screwed up after closing. FLRig is the only part of FLSuite that I have used so far.
Just my experience, your experience may be different.