How come the longest song on an album is usually the first / last song?

Examples for the last song being the longest include: The Slow Rush by Tame Impala, I Love My Computer by Ninajirachi, Pink Elephant by Arcade Fire, AEima by TOOL, Feat Inoculum by TOOL, Undertow by TOOL, the new RAYE album, Red Pill Blues by Maroon 5 (11 mins long somehow), Music of the Spheres by Coldplay. Examples for the first song being the longest include: Tarkus by ELP, Paper Gods by Duran Duran, The new Harry Styles album, GNX by Kendrick Lamar, DECIDE by DJO, Blackstar by David Bowie, The new Slayyyter album, Period by Kesha, Woodstock by Portugal. The Man, Close to the Edge by Yes, Relayer by Yes, Tranquility Base Hotel & C***** by Arctic Monkeys. And it's pretty much always 2-4 minutes longer than everything else on the album lol. Every song I mention here is at least 5 minutes long barring DECIDE. I am just geninuely curious cause there's very albums I can think of where it isn't the first or last track. Anyone know of any other examples?