SSAS, not yet, though few people use this and I don't know I'd recommend it on the same box. Is that a reason to move SSIS/SQL Engine to Linux and have SSAS on Windows? You'd have to decide.
The reason is to get out of Windows licensing that is a mess, if you are trying to offer something on a cloud, outside Azure. In theory and in some interpretation, Windows Authentication (the only accepted auth mechanism by SSAS) requires all direct and indirect users to have a Windows Server CAL (!).