Reapply "Add MTP support for hybrid models (#2363)"

[sancha]

What does this PR do ?

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flowchart LR
    A[Pre-checks] --> B[PR Tests]
    subgraph Code Review/Approval
        C1[Expert Review] --> C2[Final Review]
    end
    B --> C1
    C2 --> D[Merge]

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[sancha]

/ok to test fc2a93c

[sancha]

/ok to test 3857c44

[sancha]

/ok to test 876ca47

[sancha]

/ok to test 52f27ba

[ko3n1g]

fast-merge the reapply