> How acceptable is that? I feel it's important that items are recorded
> properly and to me obvious typos really stand out in a bad way but I
> worry that other team members may be irritated by that (especially if
> I were to do it to a senior colleague).

The acceptability of interrupting a meeting for spelling or grammar corrections depends on the nature of the meetings, the culture of the company, and the finesse you use.

At least in my company, it's far more important to get the meeting done than to remove all typos from the minutes. The meeting itself is what is important. The minutes are far less important.

In my company, constant interruptions like this would be completely unacceptable. Folks here would find your actions extremely annoying, and counter-productive. If I were running the meeting and you interrupted this way, I'd stop the meeting, ask you to write down your "corrections" in a note, and send it to me later. If you worked for me, I'd have a private conversation with you, telling you not to do this during meetings.

So apparently nobody has told you to stop doing this so far. That's probably a good sign. But still you say "it's difficult to judge how this is coming across". That's a problem. If you aren't able to judge the impact of your actions, you could be headed for repercussions down the road.

You might wish to talk with a trusted colleague. Ask how your interruptions/corrections are coming across. Learn from the feedback and decide if you need to adjust your actions - perhaps sending your corrections in a follow-up note after the meeting, directed solely to the minutes-taker.

You might also try to ponder why you aren't able to judge people's reactions yourself. Sometimes we need to improve our observational skills. Sometimes we might have conditions that prevent us from "reading" people well. The ability to judge how you are coming across in business situations can be an important skill to develop.