On a wet evening in Suhl, in the former East Germany, a smattering of youthful faces were among hundreds lining up to hear from an unlikely idol - Björn Höcke, one of the most controversial figures in the far-right Alternative for Germany (AfD) party.
This is the exit polling result of the 2024 state election in Saxony, where the AfD came in a close second to the CDU. (31,9 % CDU, 30,6% AfD)
It is pretty even with a slope towards older people until the group 70+ where there is a much lower result.
Of course this is specific to the Saxony state elections, but this is consistent with what you hear from polls which include age ranges. Unfortunately news articles often just focus on one specific age group instead of covering all of them.
In this particular case it is also important to look at Germanys demographics.
https://service.destatis.de/bevoelkerungspyramide/index.html
Basically you can say that young voters are an ever decreasing number of people, with the boomers and gen x making up the largest demographics. So even if the AfD is getting more popular among younger people, the typical AfD voter will be 50-69 and male.
Either Bevölkerungspyramide or from the election 2021 https://www.bpb.de/kurz-knapp/zahlen-und-fakten/bundestagswahlen/506248/wahlberechtigte/