Currently going through the same issue. I cannot download or update my resource packs on Nintendo Switch.
Nintendo Switch versions are the red headed step child of the Bedrock group. The most problems out of all of them, with the most unfixed bugs and crashes. Mojang needs to fix it and the lag problem, considering the Switch is one of the best selling consoles currently out right now, and involves portable play only executed elsewhere on Pocket Edition. I really really hope they get on this asap because I just want to update PureBDCraft and get those sweet sweet 1.19 textures.
Oh thanks for moving it. I'm on mobile and my finger must have hit the wrong category, my mistake. Y'all have been awesome ty.