Very different. Tibetan Buddhism refers to tantric Buddhism. The practice of Buddhism and Taoism is opportunistic and unorthodox. The practice is also very chaotic, and even ancient yoga is involved. Therefore, practice is very confidential and needs to be handed down by a guru. This teaching method is not a real Buddhism, nor can it be directly transformed into Buddhism. The main purpose is to go to the pure land for further practice. See graphic tantra and graphic Buddhism for details.