I've been scrolling through this forum for a while now, and I personally feel like a lot of people aren't sure how to get the tags off, or are not sure what magnets are for what tags. I am fairly new to lifting (only lifted for a little under a year) but ill add what knowledge I have from reading and experience. Unfortunately, I haven't gotten any magnets so my experience is lacking since I usually only go for merch that isn't tagged or with tags that can be removed without magnets.
Ink tags: Can be frozen and removed with a screwdriver. Will not set off alarms
Spider-wrap: Have heard S3 magnets will unlock, again I have not confirmed but I'm sure someone else on this forum can.
Sticker tags: Use a sharp object or tool, even your fingernails to peel it off.
Please add on more experienced users.