The architecture looks fairly different than Transmeta's architecture to me although the purported multiple ISA user feature is similar.
They presented some high level stuff at ISC 2020.
https://www.tachyum.com/assets/img/Tachyum_20ISC20.pdf
The image on slide 7 looks almost exactly like this design (including the 8x8 core matrix)
https://en.wikipedia.org/wiki/TILE64
Which targeted the same market. The problem is, this is actually a pretty hard architecture to program for.