Regression 1: Regression for forecasting

How is using linear regression for forecasting different than using it for cross-sectional data?
This video supports the textbook Practical Time Series Forecasting.
www.forecasting...
www.galitshmuel...

[@bakther]

Much thanks to share such amazing valuable materials with all.

[@Tapsthequant]

Thank you, the expression of time series into trend and seasonality got me thinking, 1. How is the regression done? 2. Whether the resulting model van be used to produce a stationary time series say after estimation of parameters, can we then remove trend and seasonality

[@hudafebriantonurrohman5948]

how to predict the next month?

[@rajalko10]

great explanation!