A Karabiner-Elements complex modification enable doing <modifier>+<pointer-click> in chrome to open underlying link in alternate left/right split view.

chrom-splitView-modification.json

{
    "description": "Chrome: Option + Click -> Down, Down, Enter (left/right Split View)",
    "manipulators": [
        {
            "conditions": [
                {
                    "bundle_identifiers": [
                        "^com\\.google\\.Chrome$"
                    ],
                    "type": "frontmost_application_if"
                }
            ],
            "from": {
                "modifiers": { "mandatory": ["option"] },
                "pointing_button": "button1"
            },
            "parameters": { "basic.to_delayed_action_delay_milliseconds": 250 },
            "to": [{ "pointing_button": "button2" }],
            "to_delayed_action": {
                "to_if_canceled": [{ "key_code": "vk_none" }],
                "to_if_invoked": [
                    { "key_code": "down_arrow" },
                    { "key_code": "down_arrow" },
                    { "key_code": "return_or_enter" }
                ]
            },
            "type": "basic"
        }
    ]
}