Re: [RE] Apex Legends Launch Options
I don't think EA will officially endorse certain launch options, so it's not really that it can be said for sure.
If you can't change it in the in-game settings then it's typically best to avoid these options.
The options W3stminst3r has mentioned should be fine as it's simply just for performance or QoL related reasons.
I'm personally not that well versed with all these commands, though if your settings are purely for performance related reasons (And not to gain an advantage by removing certain textures/models) then it should be fine, though again, I can't really say this for sure.
These launch options are pretty much the same as certain performance configs.
Community Manager David has made a comment about the use of config files:
Generally it's not a good idea to automate movement, the general guideline is that one player input should never equate to more than one game input, and in general it's best to protect your account by staying away from that stuff.
For performance config, it's usually best to stick to the in-game options where available. General tweaks to improve performance should be fine, but if hypothetically there were a way to give an advantage (improving visibility by removing intentionally obscuring effects for example) this would not be allowed.
(Source)
