I think that only applies if you activate the option to automatically forward your manuscript to ArXiv (limitation on ArXiv side?). Otherwise, HAL accepts files up to 200 MB: doc.hal.science/en/faq/ still lacks an English website, but the platform improves year after year

scirev.org 👈
"SciRev.org is [...] offering researchers the opportunity to share their experiences and select an efficient journal to submit their work." And guess what: "The website is owned and maintained by [...] a non-profit organization located in The Netherlands."

Distributed Acoustic Sensing - mjög nákvæmur skjálftamælir (með meiru) sem nær yfir margra kílómetra
www.earthscope.org/what-is/das/