You don't need to use the mod manager, you can manually install it. You are also playing a Bethesda game, you are already playing Russian roulette with stability.
Rambomst
There is probably a mod that will re-enable achievements, if not yet, there will be soon.
Edit
It looks like this may do it, though I haven't tested it as I don't have the game. https://www.nexusmods.com/oblivionremastered/mods/125?tab=posts&BH=2
Thanks for this, I'll give it a go.
Oh I didn't realise it was no longer actively being developed. That's a bummer.
I have changed up the view and don't get me wrong, it's more than usable it's just not pretty.
I've been using MeshCentral lately, it does the job but the UI leaves something to be desired.
This. I have been with multiple ISPs that use CGNAT and all had a solution to allow you to self host, just need to contact them.
If you need to resort to anti-consumer behavior to exist you shouldn't exist.
But that would require investment in infrastructure...