I think I saw somewhere the ISO rebuilds are sceduled to include Plasma 6.3.5 and Gnome 48
→ Manjaro 25.0 Zetar Release Review
@philm already linked to the location of the reveiw iso - but due to github large file restriction (2GB) they are split archives.
Use either manjaro-get-iso or manjaro-iso-downloader package to simplify downloading and assembling the ISO.
Both are available from extra repo.