Thank you that works great! For completeness here is the example above using @lazarusA’s suggestion
using CairoMakie, CSV, DataFrames, Dates
using PlotUtils: optimize_ticks
readurl(url) = download(url) |> CSV.File |> DataFrame;
datef = dateformat"yyyy-mm-ddTHH:MM:SS+ss:ss";
vaccinations = readurl("https://info.gesundheitsministerium.at/data/timeline-eimpfpass.csv");
vaccinations.date = Date.(vaccinations.Datum, datef);
subset!(vaccinations, :Name => ByRow(==("Österreich")));
fig = Figure()
ax = Axis(fig[1,1])
days = length(vaccinations.EingetrageneImpfungen)
lines!(ax, 1:days, vaccinations.EingetrageneImpfungen);
ax.xticks = (1:7:days, string.(vaccinations.date)[1:7:days])
ax.xticklabelrotation = π/4
fig
