Yes, but there is no alternative other than giving up. Starting a new OS from scratch with zero apps is a much worse starting point compared to a platform where 99.9% of apps work (minus those relying on Play Integrity with strong integrity) which may have its rug pulled in the future. The race here is about getting to a big enough market share that GrapheneOS cannot just be ignored as completely niche but has to be treated as a small but not insignificant minority.