Canada has always been appealing for people who were set on the United States but taken aback by the political climate. This goes back decades (famously in the AI space, Reagan is why Canada got Hinton instead of the US) but is exacerbated as of late. China also has pretty amazing investment in tech companies and research institutions, but Mandarin doesn't yet enjoy the same widespread adoption of English

Big caveat that I have the perspective of just one US-based former academic.