R&A MTTs in mobile apps

Hello, welcome to a new discussion in which I find myself hesitant about how to use my add-on strategy in poker tournaments. I develop my activity in applications where tournaments with add-ons abound, and I usually enter the tournament at that moment and start using a strategy in which I benefit in time-chips post-add-on (x3 initial stacks that the add-on gives you) by not seeing the benefit of losing a buy-in (similar cost to the add-on) by joining stacks to reach a post add-on where a player in an all-in can take the work of 2 or 3 hours of play off your hands, also knowing that these tournaments, in my opinion, begin to take shape after the add-on. Well, now that my general strategy is clear, I'm here to ask you about a new format I've come across: the multiple add-on. Personally, I tend to use a double add-on in tournaments that don't allow me to enter with a playable stack at the post-stage (-20bb), and that's where I use a larger investment (usually using just one add-on means a 2x buy-in). When entering these types of tournaments, I usually encounter three different strategies: those who enter, like me, with an add-on and 24bb, those who enter with 2 and 40bb, and those who enter with 3 or 4 and break the barriers from 55bb to 80bb.
While in terms of ROI, it's always better to include one add-on and reach the ITM, since they tend to be large prizes, I often start thinking: If a player invests 5x buy-in but has a stack 4x that of mine, who has the most benefits by entering the ITM? In ROI terms, that's a good idea. There are many other questions that can be answered regarding this question, all related to the prize pool, the starting stack size of the add-on, the type of blinds the tournament has, and the speed of the structure. But in short, my question is whether to use multiple add-ons and play with the maximum BBs/Chips upon entry, or continue to be beaten by the big stacks and try to double up like a cockroach 😃.
I hope this helps and that it can be helpful to those who are having the same doubts. I wish you a great week and I'll be watching your responses.