There are several posts on this forum about AA dongles and a weath of information on the topic.
I have a 2018 1.6T Highlander and I've been using a Motorola MA1 for a year or so now with few issues.
I could not successfully connect the first one I purchased from Amazon and because neither Motorola or Amazon provide after sales service other than to US customers I returned it. In retrospect the problem could well have been an Id10T issue!
The second one I purchased has been great, no connection issue, no drop outs and no issues but I must admit that the MA1 instructions leave a bit to be desired.
My Samsung S21 gets a tad warm when, on a long trip I leave it in the fast charge tray running Waze, my preferred navigation app on AA. Under this use the phone seems to use as much battery as it gains from the charger. But then again, the phone gets just as hot in the fast charger when I'm not using AA.
I recently had an issue with AA not reconnecting when I got into the car and it was a bit of a nightmare trying to sort it. Daunting when you think that it could be the MA1, the Kona's entertainment system or the phone causing the fault and there's really no way of telling which is the culprit. In the end I reasoned that Android running on my phone, a Samsung S21 was the only thing in the chain that had changed. My phone always seems to be updating some dam thing or another!
I restarted the phone, re hecked the AA settings including the 'enable wireless AA' option and it seems to have sorted the issue. Time will tell I guess but the bottom line is that I can report positively on the performance of the Motorola MA1 in my Kona.