[pc86]

Given some of the other responses I have feeling this might be an unpopular opinion, but I generally think it's very difficult to change meeting culture like this company-wide. It grows over time, it's organic, and if every Tech Lead attends 20 hours a week of meetings and you want to change the entire culture to make that 8 hours a week it's going to be an uphill battle, and there will be folks actively working against you. Some may be your other Tech Leads who are more than happy to spend half their time chit-chatting in the conference room or browsing Facebook on a Zoom call.

Think about how many of these meeting you really shouldn't be at ever. Even one where you're there 30 minutes a week and it's only useful for you to be there every couple months, it's going to be hard to get out of. My guess is it's realistic for you to be expected to attend these meetings, or at least know what happens in them (how easy that is, if it's even possible, is also a company culture thing you won't be able to change overnight).

If this is really an issue for you, the easiest way to fix it is to leave and to ask about meeting culture in the interview process.