I have had a similar issue, except that the memory leak shows up as part of nonpaged pool memory associated with audiodg.exe (a built-in windows audio driver support component).
The post here has all the details regarding how serious the leak is and how it was tracked down:
https://superuser.com/questions/1630093/how-can-i-find-the-root-cause-of-nonpaged-pool-memory-leak-from-pool-tag-pdca-ca/1646992#1646992
This is happening without using any audio sync features of TT RGB Plus, by the way. I suspect many if not all users are having a memory leak problem but not recognizing that it is caused by TT RGB Plus, since the bulk of the memory (tens of GB over days and weeks) does not show up directly under TT RGB Plus in Windows Task Manager. If you see nonpaged pool memory growing or have large memory for audiodg.exe after a few days without rebooting, it is likely caused by TT RGB Plus.
I would be interested to hear from others who have nonpaged pool memory leaks to see if it goes away if they disable startup of TT RGB Plus.exe or uninstall it. You can also use poolmon.exe as described in the link above to catch it, and/or turn on the NP Pool column under the details tab of Task Manager to see it grow for audiodg.exe (only when TT RGB Plus is running). For me it was definitely the cause, so now I have stable memory again, but also no way to control fans / lights without suffering the memory leak and rebooting the PC every few days to free it.
