GitLab Inc. is a U.S jurisdiction company hosting on U.S providers. DMCA probably won't apply to e.g Codeberg e.V, although they might need to stop serving content to U.S clients based on geo the same way non-EU companies have to comply with GDPR when serving EU clients.
Is this really true though? We hear about fines that are less than 1% of the revenue of these companies even after repeat rule violations. Also we only hear about the fine amount BEFORE collection. By the time push comes to shove I'm willing to be they (ab)used the legal system to knock down even that small amount to something even smaller.
They will still collect rent on apps they do not host or have anything to do with in alternative app stores. Which is absolutely hilarious. Speaking of alternative apps stores, the bar is so high that an F-Droid alternative just cannot exist. Tim Epic got his wish though.