My library is mostly DSF files ripped from SACD - thousands of them. I cannot say I have ever noticed the issue, although a slight tick, almost inaudible and no big deal IMO, was a known problem with the ISO-DSF extraction software. Later versions of that software corrected that several years ago. I cannot say I have really noticed much difference in normal listening. But, I have never spotted anything resembling a noticeable end of track truncation, although it just might possibly be there.
In my earlier experience, an Oppo player did the same tick on direct play of the silver disc, but, again, no truncation I ever heard. Through the grapevine, I heard Oppo solved this by precisely chopping play a bit or so early based on track timings from metadata on the disc. Does JR also do this? If so, is the algorithm perhaps too aggressive, resulting in more truncation?
I spent some time with a classical DSD recording engineer several years ago, and his Sonoma workstation revealed the end of track problem graphically. We discussed it, and it is an artifact of the peculiar and complex DSD representation of data, since DSD, unlike PCM, carries no sample by sample level information. Instantaneous level is more just like a cumulative integral of the pulse densities, not an explicit data value in the DSD data stream. So, when the input signal stops, the one-bit samples suddenly stop, even though that might be in the middle of a digital word full of one-bit samples, making that last word and only it an oddball. Hence the tick and possibly a truncated final DSD word lasting mili- or is it micro-seconds? But, my feeble logic tells me that if you hear the tick caused by the final bit in the track compared to the next bit with no signal, there has been no truncation of actual source signal.
Again, no big deal. It is very hard to hear unless someone points it out and you strain to listen for it. You might hear the tick, but it is doubtful you will hear any obvious end of track truncation. A tempest in a teapot, perhaps?
Incidentally, I do not use memory play. And, I do play DSD using on the fly conversion to 176k PCM for the application of DSP.