This isnt as risky as you think it is.
As long as you dont make it way too obvious or dont get reported to discord for it, you will not get banned, as vencord and many said, there are no reported bans for people using modified client.
when I used vencord with fakenitro and other plugins, none cared and discord cant simply prove it by me sending emojis as photo links for example (which is what I primarily used FakeNitro for, they would need hard evidence to justify I modified the client with FakeNitro). I also avoided using extensions that make it too obvious and theming too so even in screenshots it wouldn’t be obvious.
I also had people who would share screenshots with their discord client themed in discord, still none cared. If in the event you need to go to settings and show a screenshot, sync them up and use another client that doesnt make it obvious you use vencord or similar (eg use PTB for that) or disable it in your browser until it is done. Same with if you need to show right clicking or some typing or some menu etc.
Please do not fearmonger people like this, it is true there is a risk but it is not as much as you make it out to be.
So it is safe to use plugins that improve your QoL but do not overdo it and avoid theming and plugins that add things not normally present in discord [basically without right clicking or typing or in other menus]) if you dont wanna make it too obvious