OSM Vector Tiles creation and rendering methods and tools

Thanks for your answer. But maybe my questions were not properly phrased.

What I'm actually after is to know which tools are used by OSM to create and then render the vector tiles: t-rex? Tegola? etc. and then Mapnik? OpenLayers?

To reiterate - it's raster tiles, not vector tiles. The software stack is similar to what you get via https://switch2osm.org/serving-tiles/manually-building-a-tile-server-20-04-lts/ (except much more complicated, as there are different servers serving different parts of the world).

The final "display" bit is using Leaflet, not OpenLayers.

The base question is what do you mean by "OSM". Please be more specific.

In general sense (1) it's a broad community, which uses multiple tools for different needs, including raster or vector tiles. If you mean (2) OSM.org website, than the answer is "they don't use vector tiles there".

When it comes to OSM.org standard map layer, it uses OSM Carto style, which is rendered by Mapnik. But that is not the end of the road - the tiles are simply just a bunch of raster square images, nothing more. Than something like Leaflet library is used to serve the tiles in a consistent way as a map you can drag and zoom in a browser. You can read more about it here:

https://wiki.openstreetmap.org/wiki/Slippy_Map#OpenStreetMap_.22Standard.22_tile_server

I'm not sure what do you ask exactly, so please give more details.

Thanks a lot for those details.

@SomeoneElse: The link you provided will help me, thanks!

@kocio: Sorry, I was indeed not clear at all. When I said "OSM" I was actually talking about the website and the technology behind, which serves the maps. And I also thought that the server used "vector" tiles and not "raster" tiles.

Thanks again to both of you. The information you provided really makes things clearer for me.