Fallout 3 on Epic is 39 GiB, the reason for that huge size is you're forced to download all the language packs, same story for Tomb Raider and FFXIII.
As someone with a monthly data limit of 140 Gib, and who has to share it with a family, these - unnecessary - download sizes are unacceptable and make me want - and plan - to pirate the game -which even though I didn't play for I still legally own*- and only having to download 7 GiB.
I would've complained about disk space but you can just remove the extra languages conveniently located in saperate folders**.
This also applies to single player games with privacy-invasive DRM and usability-hurting DRM***, and for people who hate the idea of DRM in general.
*Own as a service and a using license.
**Unless you are tight on disk space and cannot fully download the game before removing the files.
**DOOM 2016 didn't work on Linux duo to the DRM being incompatible with proton.
The only argument for piracy being bad is that it is stealing because they lost a sale they would have otherwise gotten. You already bought the game. Therefore, there is no lost sale. There's not a single moral argument against it now.
That being said, your ISP can't tell the difference, so make sure you use a VPN (especially if torrenting)
I hate capped internet accounts. As the dad, I'd have to police the kids especially not to blow the monthly cap, and eventually I switched to a lower bandwidth but unlimited option and there was finally peace in the family.
I got a ton of games on CD from years past; but I got no disc drive on my computer anymore, so I just pirate them instead of buying them again on Steam or GOG unless they have something new to make it worth buying (like an engine port or new features or whatever).
Even if you're excessively concerned with morality and what people think of you, the only people realistically going to kick up a fuss about "pirating" games one already owns are Nintendo's lawyers.
Additionally, many newer games use Denuvo which is known for making your games run slower. Sometimes the pirated copies not only take up less space, but also perform better.
I often pirate old games I own because I'm too lazy to go find the disc. Although at least for Gothic I went to find my old disc anyways because the version I downloaded was missing the In Extremo concert.
And I pirated Sims 4 because of some DRM stuff, can't remember the exact issue. But let that sink in, I had to pirate a game that is literally free.
I don't think there is any moral issue with pirating games that you have paid for. You paid the developers for their time. Now you want to use the product you paid for in a way that fits your needs.