We observed allocations in Trixi.rhs_parabolic! for the setup of https://github.com/trixi-framework/Trixi.jl/blob/9b2fb6783b18d89e18ece81fc671f33dc9e71923/examples/dgmulti_2d/elixir_advection_diffusion.jl when adding tests in #2723. They were marked as broken tests in the PR and should be investigated.