I think Obsidian and Ninja theory's outlook can show what they might plan to do with Bethesda. Obsidian was working on The Outer Worlds when they got bought by MS. Outer Worlds released on every platform. Their next two games however, Grounded and Avowed are looking to be Xbox and Windows exclusives. Same with Hellblade 2.
That's how I see it too. MS will honor prior obligations like the Ghostwire and Deathloop deals, but any new games with unannounced platforms will likely only be on Xbox consoles, PC, and Xcloud.