Your problem is you haven't thoroughly researched the claims against Joe regarding the tapes.
WASHINGTON (AP) — The leaked recordings were hardly a political bombshell: The apparent phone conversations between Joe Biden and Ukraine’s then-president largely confirm Biden’s account of his dealings in Ukraine.
apnews.com
Anytime anyone makes an accusation, I search the accusation accompanied with the word 'debunked' following the charge. If it has been debunked, news sources will have reported on it. You should always do that before you harbor an opinion believing it is fact.