Yep, totally fine and safe :)

Yep, totally fine and safe :)

No glaring issues!
You might have to reinstall a plugin, but I've only seen that issue literally once. It only happens if that plugin is dependent on being on the beta channel.
Once you switch back to stable, just restart your Steam Deck and it'll be good to go!
No data loss or anything awful. But if it helps, I'll check in with my friend on Decky and get his confirmation before you do :)
Here's my tip (being friends with the Decky team, and having reported on them/interviewed them for a long time now!)
When you install Decky, stay on the stable branch.
When there is a update for the Steam Deck, wait a few hours until Decky have their update, install that first.
Every single complaint about Decky is totally fixed with these two dead-simple actions.
Then grab SteamGridDB and change all your game art (that's my fav plugin!)
Interesting.
Is this dragoonDorise's work? I interviewed them a few years back, and chatted again a couple weeks ago, hoping to write a feature article on the hardware, but that was a no-go.
They were interested in having me write an article on the EmuDeck Android app, but then just kinda ghosted me

Its easy, I just never sleep!
...help me
I just wanted to have actual, official ones shared!
This one is not official, it was done by a girl who goes by shy smith three years or so ago, she just tried her best to make a photo in the 'style' of the old Y2K era, and the days of PS2 ads and...everyone ended up believing it was real. She did such an amazing job of it, this one often gets shared as if it were done for Sony.
And...to be fair, the actual official ones got way worse than those I included:

As a girl who grew up with type 1 diabetes, seeing these tasteless jokes in here just remind me of the shitty time kids can have when they feel different to other kids and get singled out for something they can't control.
So what if its a gigantic mega-corp, they're doing a good thing here for children.
Disgusting fucking 'jokes'. Shitty people.
Well now my name has some baggage
And people judged me for watching YouTube with uBlock Origin, or via NewPipe for eons.
Look who's laughing now.
Removing the messages option and instead replacing it with their stupid DM chat system, even for modmail
Stating that later this year they're going to introduce walled off paid sub-reddit
That live stream nonsense they had a couple of years back
Their A.I. answers integration
Censoring users who mention 'eat the rich' and the name Luigi
No longer allowing moderators of their own sub-reddit to change a sub's status to NSFW (after the protests, obv), now requires admin to do this for them if the deem it appropriate
...who'd have guessed that these decisions were shit. Not the community who told them each time, again and again, right?
Fuck you, Reddit
Ugh. Formatting is a nightmare.
Sorry, all.
If you ever run into an issue (you won't now though, that's for sure), feel free to message me on here. I'm always happy to help!