The result - the Lilywhites' fourth win on the bounce - sees the club finish the season in 13th place, and they'll now be looking towards the summer and how best to improve their side to aid a push for the play-offs in the 2021/22 campaign.
Speaking after the match, Bayliss gave his verdict on whether McAvoy should land the job on and said: “We went from having the worst form to now having one of the best in the league towards the end of the season.
“It’s been brilliant – what’s happened since Frankie’s been in charge is brilliant for us all. We’ve got to leave appointing the new manager to the powers that be but I think Frankie has done more than enough to stake his claim for the job.
“He’s been brilliant since he’s come in and all the lads love him so we’ll have to see what happens in the summer.”
Here are today's biggest transfer stories and the latest team news involving Preston North End and the rest of the Championship, as the reaction to last weekend's action continues:
1. Hoilett leaves Bluebirds
Cardiff City winger Junior Hoilett has announced his exit from the club after five seasons with the Welsh side. The Canada international, now a free agent, turns 31 next month. (BBC Sport)
Photo: David Rogers
2. Rovers set Armstrong asking price
Blackburn Rovers are set to demand upwards of £20m for star striker Adam Armstrong this summer. The 24-year-old has scored 29 goals for his club this season, attracting the attention of both West Ham and Newcastle United. (Football League World)
Photo: Jan Kruger
3. Boothroyd favourite for Doncaster job
Ex-Watford boss Aidy Boothroyd has been named as the favourite for the vacant Doncaster Rovers job. He left the England U21 job last month after a disastrous Euro 2021 tournament. (SkyBet)
Photo: Nathan Stirk
4. Hoops keen to keep Carroll
QPR are working hard behind the scenes to extend midfielder Tom Carroll's contract. The 28-year-old former Spurs man joined his current side on a one-year deal last September, after recovering from serious hip injury. (West London Sport)
Photo: Alex Davidson