C182 Pilot reported a loss of GPS signal while on vectors for approach.

Narrative

During an IFR flight in VMC conditions with the purpose of becoming familiar with the cockpit automation in a new 182. I experienced a loss of GPS signal while being vectored for the RNAV XX into ZZZ. Prior to the loss of GPS signal; my safety pilot and I successfully flew using the GPS system and completed an instrument approach at ZZZ including a GPS arc. While being vectored all indications were normal including 'LPV' indicating we had LPV available. About the time the controller turned me to intercept the final approach course I received an 'LPV' in yellow as opposed to green indicating a integrity issue. Shortly after that; all GPS course guidance including glide slope indications disappeared from the Garmin G5. I would estimate they were gone for 20 seconds before returning. Once they returned I appeared to be in the same general point on the approach that I was before they disappeared. Shortly there after; guidance was lost yet again for a shorter interval. After the controller turned me inbound and the issue began to develop I elected to cancel my clearance and proceed visually. Thankfully; I was in total VMC the entire flight as planned. Following the two loss of guidance events; I advised my safety pilot I would follow the approach guidance to minimums but for him to let me know if something looked 'off'. I was able to receive good guidance from the final approach fix until minimum's. After landing I called approach to advise them of my issue.