My phone is Redmi Note 10 Pro (global version) running a custom ROM (AOSP based).
You can install KSU on non-GKI devices: https://kernelsu.org/guide/unofficially-support-devices.html. I was probably using this one, but there are multiple KSU kernels available for my device and you can probably find some for yours in the telegram groups.
No, sorry. Airplane mode should stop all data exchange with mobile radio, but you should still be able to enable wifi and bluetooth while airplane mode is on.
I'm pretty sure all communication with carrier is disabled when airplane mode is on, which should save more power than disabling only mobile data transfer (in this case calls and messages still get transfered and connection with carrier is active).
Unless you completely power off the radio you will still receive calls and messages. Some custom roms come with this option, but I don't know if it's possible to automate.
If you want to save more power, then enabling airplane mode and then turning wifi and / or bluetooth (depending on your needs) back on should save more power.
I think the situation here is similar to Telegram. Russian connections, but not in a impactful way. I use both without worries, but if this doesn't suit somebody, there are alternatives.
There's something interesting about mobile banking. I constantly see stories of issues with it on non-stock / unmodified software. The funny thing is that I have never had any issues personally.
Until recently my banking app worked even without Magisk's Denylist (and the most picky app was McDonald's). Now (since few months) I have to add it to Denylist, but that's the only requirement, no SafetyNet, no Play Integrity, nothing.
Have you tried KernelSU? Also if you're careful with magisk you can get SafetyNet to work, even Play Integrity API (but only Basic and Device integrity as Strong requires locked bootloader (or a really bad implementation of security mechanisms as seen here))
Nice to have control of your own device? absolutely.
I have two devices, primary with root (through Magisk as KernelSU still has some issues for me) and secondary without root.
Anytime I have to do something more demanding on the unrooted device I really wish I had root. Local terminal access, ability to disable some annoying "features" (verified app links) and multiple other things I use daily make it worth it for me.
EDIT:
I saw mentions of custom roms in other comments. I have a custom rom installed (AOSP based). If I was on a stock rom (or god forbid something like MIUI) root would be a must for me.
I think it's a different story with the original seasons. The intended version was 4 seasons, but Fox being Fox aired the episodes out of order, ending whenever they wanted and that's how 5 seasons came to be.
One might try to call it artistic privilege, but I don't think it holds when you're responsible only for distribution and not making.
I use MediaTracker which takes information form imdb and tmdb and it labels it as following:
original series (seasons 1-5)
Comedy Central (seasons 6 and 7)
Hulu (season 8)
with season 0 (specials) containing movies like Bender's Big Score
Not so much about testing, but one time I really needed to get to my backups I lost password to the repository (I'm using restic). Luckily a copy of it was stored in bitwarden, but until I remembered it, were perhaps one of the worst moments.
Needless to say, please test backups and store secrets in more then one place.
That was 3 months ago.