I worked on the Trading Estate in the 70s and I remember it pretty much as shown in the vid. I believe all the red-brick buildings and old warehouses have now been demolished.
Whatever happend to slough. I grew up there in the 90s to early 2000s. I left school in 2004. Since then it just went down hill. Now there is like only two shops left in 2024. I think the big Tesco on the a4 has not helped the high street at all.