There is no evidence that Stinkynota released an album titled 'The Sound of Spirit 3'; the available sources show 'The Sound Spirit 3' was released by The Sound Spirit in 2018, and Stinkynota has a release titled 'The Sound of Spirit 2' in 2024.
Stinkynota released the last release of “The Sound of Spirit 3”

Spirit: Stallion of the Cimarron (soundtrack) - Wikipedia
Source: en.wikipedia.org
Key Evidence
The Sound Spirit #3 was released by The Sound Spirit in 2018.
thesoundspirit.bandcamp.comthesoundspirit.bandcamp.comThe Sound Spirit #3, by The Sound Spirit
Stinkynota released 'The Sound of Spirit 2' in 2024.
boomplay.comboomplay.comStinkynota - The Sound of Spirit 2 (Speed up to 1.1X) MP3 Download & Lyrics
No source confirms a 'The Sound of Spirit 3' release by Stinkynota.
What the Evidence Shows
The claim states that Stinkynota released the last release of 'The Sound of Spirit 3'. However, none of the sources confirm a release by Stinkynota with that exact title or number.
shows an album titled 'The Sound Spirit 3' by an artist named The Sound Spirit, released on September 6, 2018. This is a different artist and slightly different title ('Sound Spirit' vs. 'Sound of Spirit').thesoundspirit.bandcamp.comthesoundspirit.bandcamp.comThe Sound Spirit #3, by The Sound Spirit
confirms that Stinkynota released 'The Sound of Spirit 2' in 2024, but there is no mention of a third installment or 'The Sound of Spirit 3' by Stinkynota.boomplay.comboomplay.comStinkynota - The Sound of Spirit 2 (Speed up to 1.1X) MP3 Download & Lyrics
Other sources ( to ) relate to unrelated soundtracks, albums, or artists with similar words like 'Spirit' or 'Sound', but none connect Stinkynota to a third release titled 'The Sound of Spirit 3'.en.wikipedia.orgen.wikipedia.orgSpirit: Stallion of the Cimarron (soundtrack)
saltofthesound.bandcamp.comsaltofthesound.bandcamp.comSpirit, by Salt Of The Sound
Therefore, the claim that Stinkynota released the last release of 'The Sound of Spirit 3' is not supported by any available evidence and appears to be false or at least unverified with current data.