This thread is still entitled Archiving and future proofing so, despite being personally in favor of speccing ACES-compliant compressed OpenEXRs (as I already declared elsewhere in ACEScentral), from this thread’s perspective neither playback quality nor on-set operations being relevant here.
Said that, I subscribe most facilities rather keep original raw files up until the first post-production rendering (for either offline editorial, VFX plates, intermediate-grade renders, mezzanines and final masters). Despite “being allowed” in the above cases as well, ST2065-4 format (i.e. “uncompressed, 16bpc, ACES2065-1 EXRs” for short) is not mandated to be created prior to on-set or playback operations.
As per Jim’s comments, most facilities would rather do grading/playback from raw sources to keep maximum quality (* cfr. bullet-point below). If your infrastructure can sustain this (which means from Bayern-pattern, usually compressed footage), chances are ST2065-4 is well within their technological capacity as well (meant as storage, bandwidth, CPU/GPU power)
- This is usually good practive, unless other concerns demand an early render from raw files, like Debayerning concerns or other processes now called “digital negative development”.