Describe the bug
In many use cases, I have seen code extracting a column from a dataframe then adding a string.
In the current setup this is now barred but I believe we should be a little lenient when it comes to not being too strict since the types can't be inferred from a dataframe when selecting a column.

To Reproduce

1. Provide a minimal runnable pandas example that is not properly checked by the stubs.
2. Indicate which type checker you are using (mypy or pyright).
3. Show the error message received from that type checker while checking your example.

import pandas as pd

df = pd.Series(["a", "b"]).to_frame()
df[0] + "c3"  # Operator "+" not supported for types "Series[Any]" and "Literal['c3']" [repor│

Please complete the following information:

• OS: MacOS
• OS Version [e.g. 22]
• python version 3.14
• version of type checker 1.19
• version of installed pandas-stubs main

Additional context
Add any other context about the problem here.