This is what Tim Staffel said about the new version of "Doin All Right" in a recent Spanish language interview. My own translation below. I am not a native English or Spanish speaker, so bear with me.
"Tim Staffell aparecerá como personaje en la película “Bohemian rhapsody”, y ha grabado voces para la escena en que Mercury ve a Smile en un club. “Están tocando ‘Doin’ alright’ y utilizaron las pistas de la versión de Queen. El tipo que me interpreta a mí canta sobre esas pistas. Brian (May) me dijo que no estaba satisfecho con la voz, así que me pidió que fuera al estudio a grabar algunas pistas para la película. Fui a Abbey Road y doblé algunas partes, cantando ‘Doin’ alright’. Intentamos que sonara más a Smile, y creo funcionó. Lo hicimos un poco más agresivo, más crudo; que se pareciera más al sonido de la época en que se grabó, a pesar de que la mayoría de las pistas sean de la versión de Queen."
Source: link on Tim Staffel's Facebook to:
https://www.efeeme.com/tim-staffell-el-hombre-que-pudo-reinar/
My translation (feel free to improve it):
Tim Staffell will appear as a character in the movie “Bohemian Rhapsody”, and has recorded voices for the scene in which Mercury watches Smile in a club. “They are playing ‘Doin’ alright’ and used the multitracks of the Queen version. The guy that plays me sings over these multitracks. Brian (May) told me he was not satisfied with the voice, so he asked me to go to the studio to record some parts for the movie's multitracks. I went to Abbey Road and dubbed some parts, singing ‘Doin’ alright’. We tried to make it sound more like Smile, and I think it worked. We made it a little bit more agressive, more raw; so that it would be more similar to the sound of the time when it was recorded, even though most of the multitrack parts were from the Queen version."
Cheers,
Ogre-