Hi @jhashwani ,
Could you please share a bit more about your scenario?
Do you want to access the Input Type field of a PCF control in your Model-Driven app form?
If you want to extract the "input" type parameter value(s) from PCF control in your Model-Driven form using JavaScript, I afraid that there is no way to achieve your needs.
Currently, within PCF control, the "Input" parameters defined within the ControlManifest.Input.xml file would not be exposed as HTML DOM Element in browser, so you could not use JavaScript code to select/extract the "input" type parameter value(s).
If you attach a Id selector property to the PCF control, you could get the value of the PCF control through the Id selector property:

When you add your PCF control in your Model-Driven app form, the PCF control would be rendered as a normal HTML DOM Element like above screenshot:
<input type="range" max="100" min="1" class="linearslider" id="linearrangeinput">
If you want to get the value from the PCF control, you could extract the corresponding value based on the id selector using the the following JS Code:
var pcf_value = document.getElementById("linearrangeinput").value
Please consider take a try with above solution, then check if the issue is solved.
Best regards,