Can my wife extend her stay in Thailand on a Multi Non-O visa by exiting and re-entering every 90 days?

My wife is on an Australian-issued Multi Non-O visa, valid for 90 days in Thailand. If she leaves toward the end of that first 90-day period and returns, will she be stamped in for another 90 days, thus keeping that original sticker alive? Can we repeat that process each quarter (flying out each time)?

The reason for asking is that because she is under 50 and I'm over (on an Australia Non-OA), we went through the process of linking her as a trailing spouse last time around. We maxed those original OA and O visas for the allowed two years. We have recently returned with new OA and Non-O's, and we have travel booked every quarter, which, if my theory is correct, then we wouldn't need to go through the spousal linking process. Thanks in advance.