Ibm has moved away from the computer market in terms of hardware. They have programs working on iot type stuff and mostly work on business service, analytics, management and software. They sold off their home pc and server market to lenovo. The few semiconductor needs they have they've offloaded to global foundaries and they've given up their fab process. Considering all these recent moves over the past 10-12 years or so, it would be completely the opposite to pick up amd. They're not buying up chip processing, they're getting rid of what they had and focusing on other areas.
As far as lenovo goes, now that they're in charge of the old ibm pc and server hardware market, they have almost no amd solutions. Nearly everything from gaming laptops to student laptops, desktop pcs, servers, workstations, blade servers, cluster computing nodes - are nearly exclusively intel based. This was looking at the products on their site. I managed to find one amd powered system and it was either an all in one or tablet type device. In the past ibm used primarily intel before they gave up their hardware end of things and sold out to lenovo.