I think it's safe to say that if the processors do not use partial address matches above address bit 11 when resolving load conflicts then they would not be vulnerable to an exploit which can gain access to partial address information above address bit 11 during load operations.

The paper, from the authors that found SPOILER, already states they were unable to exploit AMD processors:

“The analyzed ARM and AMD processors do not show similar behaviour”. [1]

[1] https://arxiv.org/pdf/1903.00446.pdf